Bump itsdangerous from 2.0.1 to 2.1.2

Bumps [itsdangerous](https://github.com/pallets/itsdangerous) from 2.0.1 to 2.1.2.
- [Release notes](https://github.com/pallets/itsdangerous/releases)
- [Changelog](https://github.com/pallets/itsdangerous/blob/main/CHANGES.rst)
- [Commits](pallets/itsdangerous@2.0.1...2.1.2)

---
updated-dependencies:
- dependency-name: itsdangerous
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.txt

@@ -23,4 +23,4 @@ Werkzeug==1.0.1
 WTForms==2.3.3
 MarkupSafe<=2.0.1
 jinja2==3.0.2
-itsdangerous==2.0.1
+itsdangerous==2.1.2