Merge pull request #18 from pceuropa/dependabot/pip/protobuf-3.18.3

Bump protobuf from 3.5.2.post1 to 3.18.3

Author: pceuropa

requirements.txt

@@ -114,7 +114,7 @@ msrestazure==0.4.27
 oauthlib==2.0.7
 passlib==1.7.1
 permission==0.4.1
-protobuf==3.5.2.post1
+protobuf==3.18.3
 pycparser==2.18
 PyJWT==1.6.1
 python-dateutil==2.7.2