Bump tzdata from 2025.2 to 2025.3 (MemMachine#893)

Bumps [tzdata](https://github.com/python/tzdata) from 2025.2 to 2025.3.
- [Release notes](https://github.com/python/tzdata/releases)
- [Changelog](https://github.com/python/tzdata/blob/master/NEWS.md)
- [Commits](python/tzdata@2025.2...2025.3)

---
updated-dependencies:
- dependency-name: tzdata
  dependency-version: '2025.3'
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]