Bump pandas from 2.2.0 to 2.2.1 in /.github/workflows/requirements

Bumps [pandas](https://github.com/pandas-dev/pandas) from 2.2.0 to 2.2.1.
- [Release notes](https://github.com/pandas-dev/pandas/releases)
- [Commits](pandas-dev/pandas@v2.2.0...v2.2.1)

---
updated-dependencies:
- dependency-name: pandas
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

.github/workflows/requirements/docs.txt

@@ -2,6 +2,6 @@
 sphinx==7.2.6
 sphinx-rtd-theme==2.0.0
 codespell==2.2.6
-pandas==2.2.0
+pandas==2.2.1
 pyyaml==6.0.1
 sphinxcontrib-programoutput==0.17