mock google-services in CI builds

.github/workflows/android.yml

@@ -11,6 +11,10 @@ jobs:
     - uses: actions/checkout@master
     - name: Checkout submodules
       uses: textbook/git-checkout-submodule-action@master
+    - name: Mock google services
+      run: |
+        rm ./app/google-services.json
+        cp ./app/google-services-example.json ./app/google-services.json
     - name: set up JDK 1.8
       uses: actions/setup-java@master
       with:

app/google-services-example.json

@@ -0,0 +1,40 @@
+{
+  "project_info": {
+    "project_number": "1111",
+    "firebase_url": "https://xxx.firebaseio.com",
+    "project_id": "xxx",
+    "storage_bucket": "xxx.appspot.com"
+  },
+  "client": [
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:xxx:android:1111",
+        "android_client_info": {
+          "package_name": "com.geeksville.mesh"
+        }
+      },
+      "oauth_client": [
+        {
+          "client_id": "111-xxx.apps.googleusercontent.com",
+          "client_type": 3
+        }
+      ],
+      "api_key": [
+        {
+          "current_key": "xxx-c"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": [
+            {
+              "client_id": "111-xxx.apps.googleusercontent.com",
+              "client_type": 3
+            }
+          ]
+        }
+      }
+    }
+  ],
+  "configuration_version": "1"
+}