Bump pytz from 2025.2 to 2026.2

Bumps [pytz](https://github.com/stub42/pytz) from 2025.2 to 2026.2.
- [Release notes](https://github.com/stub42/pytz/releases)
- [Commits](stub42/pytz@release_2025.2...release_2026.2)

---
updated-dependencies:
- dependency-name: pytz
  dependency-version: '2026.2'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

requirements.txt

@@ -33,7 +33,7 @@ waitress==3.0.2
 zope.sqlalchemy==3.1
 gunicorn==23.0.0
 python-dotenv==1.2.1
-pytz==2025.2
+pytz==2026.2
 
 # needs: https://github.com/stefanofontanelli/ColanderAlchemy/pull/90 + 91
 ColanderAlchemy @ git+https://github.com/c2corg/ColanderAlchemy.git@v0.3.4+c2corg.1