Bump flask-wtf from 0.14.2 to 0.14.3 in /{{cookiecutter.app_name}}

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>

{{cookiecutter.app_name}}/Pipfile

@@ -18,7 +18,7 @@ psycopg2-binary = "==2.8.4"
 Flask-Migrate = "==2.5.2"
 
 # Forms
-Flask-WTF = "==0.14.2"
+Flask-WTF = "==0.14.3"
 WTForms = "==2.2.1"
 
 # Deployment