This PR has been created by a script, which is not very smart
and does not have all the context. Please do double-check that
the version prefix is correct before merging.

@nickchapman-da is in charge of this release.

Commit log:
```
56f3f6c factor the complicated bits of contract selection between PG, Oracle (#10528)
3b1d1ac IndexerBenchmark: an option for defining minimum update rate [DPP-541] (#10540)
511f27c H2 Storage backend support for canton jdbc urls with user/password (#10523)
5cc78f5 Handle missing template instances in Daml ledger export (#10526)
5e7f8e6 Handle not quite empty directory digests in cache cleanup (#10536)
34fa5a0 Support running daml navigator without a config file (#10532)
1affbd2 feature: persist script view config in worspace (#10521)
7529c4a Issue: 10383 - Support deadline for command submission (#10522)
881d0ab Upgrade rules_haskell and rules_nixpkgs (#10517)
35f1592 Split the Daml ledger export integration tests (#10506)
ebab670 Disable pushing Bazel metrics on PRs from forks (#10520)
b00e146 [JSON-API/trigger-service] Refactor db conn (#10497)
23168a8 KV / integrity checker: conflate `Disputed`, `InvalidLedgerTime` and `Inconsistent` rejection reasons [KVL-1059] (#10515)
55ed83c Factor out Daml export integration tests (#10492)
683cccc timer-utils: If `RetryStrategy` eventually fails, explain what happened. (#10511)
2d25797 update compat versions for 1.16.0-snapshot.20210805.7501.0.48050ad7 (#10505)
771f918 update NOTICES file (#10514)
4406e98 Create a proper state enum in LedgerConfigurationSubscriptionFromIndex. [KVL-1046] (#10508)
fe1c678 sandbox: Attempt to make the reset service tests less flaky. (#10507)
07da936 participant-integration-api: Always wait for the first config lookup. (#10500)
313110c correct JSON API upper date bound (#10489)
a96f3d2 Release another 1.16.x snapshot (#10502)
9da6b04 participant-integration-api: Make the initial ledger config optional. [KVL-1046] (#10498)
a7fa7d3 participant-integration-api: Rename and restructure the configuration initialization classes. [KVL-1046] (#10496)
35641b7 Add submission id to the GRPC api [KVL-999] (#10467)
df78f9c Replace LedgerConfiguration with InitialLedgerConfiguration or the load timeout. [KVL-1058] (#10487)
8603cd3 [JSON-API] Move database independent tests into a seperate abstract test (#10482)
8f1cde3 Handle exerciseByKey after exercise command (#10490)
a8a39f7 Handle tuple values in Daml ledger export (#10483)
73b6596 replace DA ledger with Daml ledger in the ledger model (#10491)
348c6de Add dlint rule to suggest === (#10485)
185f888 move e2e testing to app-dev (#10479)
6e0e46e update NOTICES file (#10488)
12599e7 Disable configuration management until the ledger has a configuration. [KVL-1058] (#10478)
36f3ba8 lsp-types patch for platform independence (#10288)
7c6d3c5 Handle package dependencies without metadata in Daml export (#10481)
e5514bc feature: remember checkboxes in script view (#10469)
87c9c51 Use at least LF version 1.7 for Daml ledger export (#10480)
50c7b79 Indexer db MigrateOnEmptySchemaAndStart startup mode and migrateOnly hook (#10457)
dc47b10 LF: Log internal errors (#10471)
7bcec46 update NOTICES file (#10476)
a60bfb5 json-api: avoid row_number/partition for single-party Oracle contract queries (#10124)
c243f82 LF: Clean up of Errors (#10052)
5d5343a LF: remove PartialTransaction argument from Speedy err pretty printer (#10470)
45ed615 participant-integration-api: Use `Scheduler`, and add more tests to configuration initialization. [KVL-1046] (#10461)
55392a5 [Docs] Update to a newer gpg keyserver because the old one is deprecated / not reachable anymore (#10452)
8c55e01 update compat versions for 1.16.0-snapshot.20210802.7499.0.5157ad6d (#10464)
5802f96 [JSON-API] Add option for setting a table prefix (#10444)
f1c7548 remove unstable marker for append-only features (#10465)
24d3899 Fix deprecated buf command-line parameterization [KVL-980] (#10447)
b4b4a94 Release a new 1.16.0 snapshot (#10460)
8df17d2 update NOTICES file (#10463)
a074bb1 Append-only schema h2 database fix (#10462)
1971274 Reactive canton conformance test aginst LF 1.13 (#10458)
db7728a participant-integration-api: Split LedgerConfigProvider into two, and add test cases. [KVL-1046] (#10455)
```
Changelog:
```
- [Integration Kit] - indexer-benchmark - added --min-update-rate option for defining required update rate
- [Daml export] Daml ledger export now handles templates in packages
  using LF versions 1.7 or older. These package versions don't include
  type class instances and Daml ledger export needs to generate
  replacement instances in the generated script. The generated script
  uses less type-safe versions of Daml script ledger commands.
- [Navigator] Navigator will now start with an empty config if no
config file exists and it is run outside of a project.
[Daml studio] The script view configuration is remembered for each
script in a workspace and does not need to be reconfigured upon
closing/reopening or restarting of Daml studio.
- [Integration Kit] The initial ledger configuration is now optional;
  if it is not specified, the participant will not attempt to submit a
  configuration, but instead wait for something else to provision the
  ledger with a configuration.
  This behavior is intended to be used by ledger drivers that have
  alternative means of setting up the initial ledger configuration. If
  no configuration is provisioned, the participant server will not be
  able to submit commands to the ledger.
Add optional submission_id to the commands.proto.
- [Integration Kit] The ``LedgerConfiguration`` class has been
  removed in favor of ``InitialLedgerConfiguration``. Its usage
  has been changed accordingly, with the ``configurationLoadTimeout``
  property becoming part of ``ApiServerConfig`` instead.
  The default options provided by ``LedgerConfiguration`` have been
  removed; you are now encouraged to come up with sensible values for
  your own ledger. The ``Configuration.reasonableInitialConfiguration``
  value may help.
- [API Server] The configuration management service previously returned
  the participant-specified default configuration if none was found on
  the ledger. This can be misleading, and so the ``GetTimeModel``
  endpoint now returns a gRPC ``NOT_FOUND`` error if no configuration
  has been found yet. Similarly, the ``SetTimeModel`` endpoint returns a
  gRPC ``UNAVAILABLE`` error.
  This should only happen if the participant gives up waiting for the
  ledger to provide a configuration, which is very unlikely in a
  production setting. In this case, the ledger will also not respond to
  command submissions.
[daml studio] The script view now remembers checkboxes for detailed
disclosure view and archived contracts across script changes.
Indexer: The indexer now supports the MigrateOnEmptySchemaAndStart startup mode that only performs migrations
on brand-new databases. In addition "real upgrades" are now supported via a new "StandaloneIndexerServer.migrateOnly"
entry point.

- [Docs] The manual install instructions now use a different gpg keyserver because the old one is deprecated / not reachable anymore

- [JSON-API] A table prefix can now be specified in the jdbc config via `tablePrefix=<YourFancyTablePrefix>`. This was added to allow running multiple instances of the json api without having collisions (independent of the chosen database).

```

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