Bump geopy from 1.19.0 to 1.20.0

Bumps [geopy](https://github.com/geopy/geopy) from 1.19.0 to 1.20.0.
- [Release notes](https://github.com/geopy/geopy/releases)
- [Changelog](https://github.com/geopy/geopy/blob/master/docs/changelog_1xx.rst)
- [Commits](https://github.com/geopy/geopy/compare/1.19.0...1.20.0)

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

setup.py

@@ -39,7 +39,7 @@ setup(
         'flask-nav==0.6',
         'flask-wtf==0.14.2',
         'flask-caching==1.7.0',
-        'geopy==1.19.0',
+        'geopy==1.20.0',
         'celery==4.3.0',
 	'redis==3.2.1',
         'aerofiles==1.0.0',