Bump time-machine from 2.11.0 to 2.12.0

Bumps [time-machine](https://github.com/adamchainz/time-machine) from 2.11.0 to 2.12.0.
- [Changelog](https://github.com/adamchainz/time-machine/blob/main/CHANGELOG.rst)
- [Commits](adamchainz/time-machine@2.11.0...2.12.0)

---
updated-dependencies:
- dependency-name: time-machine
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pyproject.toml

@@ -82,7 +82,7 @@ dev-pytest = [
   "pytest == 7.4.0",
   "pytest-mock == 3.11.1",
   "pytest-asyncio == 0.21.1",
-  "time-machine == 2.11.0",
+  "time-machine == 2.12.0",
   "async-solipsism == 0.5",
   # For checking docstring code examples
   "sybil == 5.0.3",