Enable Analytics patch updates with Firebase pod update (#7729)

Author: paulb777

Firebase.podspec

@@ -34,7 +34,7 @@ Simplify your app development, grow your user base, and monetize more effectivel
     ss.ios.deployment_target = '9.0'
     ss.osx.deployment_target = '10.12'
     ss.tvos.deployment_target = '10.0'
-    ss.ios.dependency 'FirebaseAnalytics', '7.8.1'
+    ss.ios.dependency 'FirebaseAnalytics', '~> 7.8.1'
     ss.dependency 'Firebase/CoreOnly'
   end