0.18.3

Chore

• bump to latest rust (0148e04d)
• update python cryptography (#1690) (e93bb882)
• added build-and-push to GAR (#1654) (cb37e2aa)
• upload test artifacts to gcs (aeedcf1e)
• switch back to libmariadb-dev (#1665) (e0093a88)
• migrate tokenserver tests to pytest with junit output (15840c5e)
• migrate unit tests to nextest and llvm-cov (8c56cae8)

Features

• build docker w/ Oracle's libmysqlclient (#1695) (569e5100)
• emit oauth verification timeouts as metrics (not sentry) (#1694) (624eced1)

Bug Fixes

• re-enable tokensever e2e tests (d0336c88)
• avoid underflow of the queued_tasks metric (10daab06)
• Revert "fix: avoid underflow of the queued_tasks metric (#1628)" (31dda136)
• resolve pyo3 vuln deprecations (#1682) (0675930a)
• infra: configure gcp utils before upload (#1698) (5dcfefe2)

Test

• e2e: run integration and e2e tests with pytest (#1697) (6f15ad54)

Doc

• add tokenserver documentation to sync (#1681) (dadbcea3)
• update purge script's status now that it's running (#1679) (6f0c7b28)
• document pruning scripts (#1645) (7c9bc008)

Refactor

• kill tokenserver's TokenType now that it's solely oauth (a26ff490)
• simplify metric_label to return a &str (0ca435fb)