Bump pandas from 2.1.4 to 2.2.0

Bumps [pandas](https://github.com/pandas-dev/pandas) from 2.1.4 to 2.2.0.
- [Release notes](https://github.com/pandas-dev/pandas/releases)
- [Commits](pandas-dev/pandas@v2.1.4...v2.2.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -1,7 +1,7 @@
 numpy==1.26.3
 scipy==1.11.4
 matplotlib==3.8.2
-pandas==2.1.4
+pandas==2.2.0
 patsy==0.5.6
 pyarrow==15.0.0
 scikit-learn==1.4.0