* master: (32 commits)
  feat(txname): Mark all URL transactions as sanitized (#2210)
  fix(profiles): Enforce profile quotas on metrics buckets (#2212)
  revert(spans): Move span metrics back to transactions namespace (#2206)
  instr(metrics): Add values to invalid metric errors (#2201)
  ref(spans): Move span metrics to spans namespace (#2205)
  chore(protocol): Add missing py/changelog entry for lock property (#2203)
  build(py): Move pytest.ini to tests directory (#2204)
  ref: Use serde collect_str to avoid allocations (#2149)
  chore(gocd): Auto approve deploy relay-pop on check success (#2200)
  test(document-pii): Fix flaky test (#2198)
  feat(spans): Extract transaction `user` into span's databag (#2197)
  feat(spans): Extract `release` tag from the transaction to the span (#2189)
  ref(metrics-extraction): Split span and transaction metric extraction (#2191)
  ref(crons): Support GET in the check-in endpoint (#2192)
  ref(spans): Introduce opinionated casing in span metrics (#2193)
  chore(py): Bump `requests` lib version (#2194)
  doc: document pii fields (#1972)
  feat: Added cron specific endpoint (#2153)
  feat(profiling): Extract app identifier from app context (#2172)
  feat(ci): Add CI-check for pop-deploys  (#2184)
  ...