Bump flask-wtf from 1.2.1 to 1.2.2

Bumps [flask-wtf](https://github.com/pallets-eco/flask-wtf) from 1.2.1 to 1.2.2.
- [Release notes](https://github.com/pallets-eco/flask-wtf/releases)
- [Changelog](https://github.com/pallets-eco/flask-wtf/blob/main/docs/changes.rst)
- [Commits](pallets-eco/flask-wtf@v1.2.1...v1.2.2)

---
updated-dependencies:
- dependency-name: flask-wtf
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

dev-requirements.txt

@@ -167,7 +167,7 @@ flask-script==2.0.6
     # via superdesk-core
 flask-webpack==0.1.0
     # via -r requirements.txt
-flask-wtf==1.2.1
+flask-wtf==1.2.2
     # via -r requirements.txt
 future==1.0.0
     # via python-twitter