Merge pull request #129 from firebase/update-to-firebase-cpp-12.0.0

Update to Firebase C++ SDK 12.0.0.

Update Auth testapp to remove breaking changes.

Update Cocoapods, iOS versions, and Android OS versions.

Author: jonsimantov

.github/workflows/android.yml

@@ -9,7 +9,7 @@ on:
     inputs:
       apis:
         description: 'CSV of apis to build and test'
-        default: 'admob,analytics,auth,database,dynamic_links,firestore,functions,gma,messaging,remote_config,storage'
+        default: 'analytics,auth,database,dynamic_links,firestore,functions,gma,messaging,remote_config,storage'
         required: true
 
 env:
@@ -32,7 +32,7 @@ jobs:
         if [[ "${{ github.event_name }}" == "workflow_dispatch" ]]; then
           apis="${{ github.event.inputs.apis }}"
         else
-          apis="admob,analytics,auth,database,dynamic_links,firestore,functions,gma,messaging,remote_config,storage"
+          apis="analytics,auth,database,dynamic_links,firestore,functions,gma,messaging,remote_config,storage"
         fi
         echo apis:  ${apis}
         echo "::set-output name=apis::${apis}"

.gitignore

@@ -0,0 +1,2 @@
+GoogleService-Info.plist
+google-services.json