Bump the pip group with 3 updates

Bumps the pip group with 3 updates: [pytz](https://github.com/stub42/pytz), [requests](https://github.com/psf/requests) and [requests-cache](https://github.com/requests-cache/requests-cache).


Updates `pytz` from 2025.2 to 2026.1.post1
- [Release notes](https://github.com/stub42/pytz/releases)
- [Commits](stub42/pytz@release_2025.2...release_2026.1.post1)

Updates `requests` from 2.33.0 to 2.33.1
- [Release notes](https://github.com/psf/requests/releases)
- [Changelog](https://github.com/psf/requests/blob/main/HISTORY.md)
- [Commits](psf/requests@v2.33.0...v2.33.1)

Updates `requests-cache` from 1.3.0 to 1.3.1
- [Release notes](https://github.com/requests-cache/requests-cache/releases)
- [Changelog](https://github.com/requests-cache/requests-cache/blob/main/HISTORY.md)
- [Commits](requests-cache/requests-cache@v1.3.0...v1.3.1)

---
updated-dependencies:
- dependency-name: pytz
  dependency-version: 2026.1.post1
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: pip
- dependency-name: requests
  dependency-version: 2.33.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: pip
- dependency-name: requests-cache
  dependency-version: 1.3.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: pip
...

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

Author: dependabot[bot]

requirements.txt

@@ -1,4 +1,4 @@
 pre-commit==4.5.1
-pytz==2025.2
-requests==2.33.0
-requests-cache==1.3.0
+pytz==2026.1.post1
+requests==2.33.1
+requests-cache==1.3.1