Bump flask-caching from 1.7.0 to 1.7.2

Bumps [flask-caching](https://github.com/sh4nks/flask-caching) from 1.7.0 to 1.7.2.
- [Release notes](https://github.com/sh4nks/flask-caching/releases)
- [Changelog](https://github.com/sh4nks/flask-caching/blob/master/CHANGES)
- [Commits](https://github.com/sh4nks/flask-caching/compare/v1.7.0...v1.7.2)

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

setup.py

@@ -38,7 +38,7 @@ setup(
         'flask-bootstrap==3.3.7.1',
         'flask-nav==0.6',
         'flask-wtf==0.14.2',
-        'flask-caching==1.7.0',
+        'flask-caching==1.7.2',
         'geopy==1.20.0',
         'celery==4.3.0',
 	'redis==3.2.1',