By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

Description of changes:
Add Adoption by Annotation feature gate

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

### Update to ACK runtime `v0.40.0`, code-generator `v0.40.0`

----------

* ACK code-generator `v0.40.0` [release notes](https://github.com/aws-controllers-k8s/code-generator/releases/tag/v0.40.0)
* ACK runtime `v0.40.0` [release notes](https://github.com/aws-controllers-k8s/runtime/releases/tag/v0.40.0)

----------

NOTE:
This PR increments the release version of service controller from `v1.0.19` to `v1.0.20`

Once this PR is merged, release `v1.0.20` will be automatically created for `s3-controller`

**Please close this PR, if you do not want the new patch release for `s3-controller`**

----------

#### stdout for `make build-controller`:

```
building ack-generate ... ok.
==== building s3-controller ====
Copying common custom resource definitions into s3
Building Kubernetes API objects for s3
Generating deepcopy code for s3
Generating custom resource definitions for s3
Building service controller for s3
Generating RBAC manifests for s3
Running gofmt against generated code for s3
Updating additional GitHub repository maintenance files
==== building s3-controller release artifacts ====
Building release artifacts for s3-v1.0.20
Generating common custom resource definitions
Generating custom resource definitions for s3
Generating RBAC manifests for s3
```

----------

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

Issue [#2230](aws-controllers-k8s/community#2230)

Description of changes:
This PR is ensuring the controller does not assign default empty
values to the resource during a read operation

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.