Bump tzdata from 2026.4 to 2026.5

Bumps [tzdata](https://github.com/python/tzdata) from 2026.4 to 2026.5.
- [Release notes](https://github.com/python/tzdata/releases)
- [Changelog](https://github.com/python/tzdata/blob/master/NEWS.md)
- [Commits](https://github.com/python/tzdata/compare/2026.4...2026.5)

---
updated-dependencies:
- dependency-name: tzdata
  dependency-version: '2026.5'
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

requirements.txt

@@ -7,4 +7,4 @@ pywidevine==1.9.0
 Requests==2.34.2
 tabulate==0.10.0
 tqdm==4.70.1
-tzdata==2026.4
+tzdata==2026.5