Bump flask-wtf from 0.14.2 to 0.14.3

Bumps [flask-wtf](https://github.com/lepture/flask-wtf) from 0.14.2 to 0.14.3.
- [Release notes](https://github.com/lepture/flask-wtf/releases)
- [Changelog](https://github.com/lepture/flask-wtf/blob/master/docs/changelog.rst)
- [Commits](https://github.com/lepture/flask-wtf/compare/v0.14.2...0.14.3)

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

setup.py

@@ -36,7 +36,7 @@ setup(
         'Flask-SQLAlchemy==2.4.1',
         'Flask-Migrate==2.5.2',
         'Flask-Bootstrap==3.3.7.1',
-        'Flask-WTF==0.14.2',
+        'Flask-WTF==0.14.3',
         'Flask-Caching==1.8.0',
         'geopy==1.21.0',
         'celery==4.4.0',