build(deps): bump flask-caching from 1.11.1 to 2.0.0

Bumps [flask-caching](https://github.com/pallets-eco/flask-caching) from 1.11.1 to 2.0.0.
- [Release notes](https://github.com/pallets-eco/flask-caching/releases)
- [Changelog](https://github.com/pallets-eco/flask-caching/blob/master/CHANGES.rst)
- [Commits](pallets-eco/flask-caching@v1.11.1...v2.0.0)

---
updated-dependencies:
- dependency-name: flask-caching
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

requirements.txt

@@ -26,7 +26,7 @@ feedgen==0.9.0
 feedparser==6.0.10
 fixtures==4.0.0
 Flask==2.1.2
-Flask-Caching==1.11.1
+Flask-Caching==2.0.0
 flask-gae-static==0.2
 gdata==4.0.1
 google-api-core==2.7.1