Bump pyproject-api from 1.8.0 to 1.9.0

Bumps [pyproject-api](https://github.com/tox-dev/pyproject-api) from 1.8.0 to 1.9.0.
- [Release notes](https://github.com/tox-dev/pyproject-api/releases)
- [Commits](tox-dev/pyproject-api@1.8.0...1.9.0)

---
updated-dependencies:
- dependency-name: pyproject-api
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pyproject.toml

@@ -77,7 +77,7 @@ doc = [
   "pluggy==1.5.0",
   "pygments==2.19.1",
   "pymdown-extensions==10.14.3",
-  "pyproject-api==1.8.0",
+  "pyproject-api==1.9.0",
   "python-dateutil==2.9.0.post0",
   "pytz==2024.2",
   "pyyaml==6.0.2",