build(deps): bump pytz from 2025.1 to 2025.2 in /tools

Bumps [pytz](https://github.com/stub42/pytz) from 2025.1 to 2025.2.
- [Release notes](https://github.com/stub42/pytz/releases)
- [Commits](stub42/pytz@release_2025.1...release_2025.2)

---
updated-dependencies:
- dependency-name: pytz
  dependency-version: '2025.2'
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

tools/requirements.txt

@@ -1,6 +1,6 @@
 aiohttp==3.11.12
 async-timeout==4.0.3
-pytz==2025.1
+pytz==2025.2
 sentry-sdk==1.16.0
 structlog==24.4.0
 taskcluster==80.0.0