Bump pandas-stubs from 2.0.2.230605 to 2.1.1.230928

Bumps [pandas-stubs](https://github.com/pandas-dev/pandas-stubs) from 2.0.2.230605 to 2.1.1.230928.
- [Changelog](https://github.com/pandas-dev/pandas-stubs/blob/main/docs/release_procedure.md)
- [Commits](pandas-dev/pandas-stubs@v2.0.2.230605...v2.1.1.230928)

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

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

requirements-dev.txt

@@ -1,7 +1,7 @@
 types-requests==2.31.0.2
 types-urllib3==1.26.25.14
 types-psycopg2==2.9.21.11
-pandas-stubs==2.0.2.230605
+pandas-stubs==2.1.1.230928
 
 ruff~=0.1.2
 black~=23.10.1