Bump pandas from 2.1.1 to 2.1.2

Bumps [pandas](https://github.com/pandas-dev/pandas) from 2.1.1 to 2.1.2.
- [Release notes](https://github.com/pandas-dev/pandas/releases)
- [Commits](pandas-dev/pandas@v2.1.1...v2.1.2)

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

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

requirements.txt

@@ -10,4 +10,4 @@ google-auth-httplib2==0.1.1
 google-auth-oauthlib==1.1.0
 googleapis-common-protos==1.60.0
 opensearch-py==2.3.2
-pandas==2.1.1
+pandas==2.1.2