ci: add dummy google-services.json to fix google-services plugin missing file error

Author: JadenJSJ

.github/workflows/blacksmith.yml

@@ -66,6 +66,39 @@ jobs:
     - name: Grant execute permission for gradlew
       run: chmod +x gradlew
 
+    - name: Create dummy google-services.json
+      run: |
+        cat << 'EOF' > app/google-services.json
+        {
+          "project_info": {
+            "project_number": "123456789012",
+            "project_id": "dummy-project"
+          },
+          "client": [
+            {
+              "client_info": {
+                "mobilesdk_app_id": "1:123456789012:android:0000000000000000",
+                "android_client_info": {
+                  "package_name": "com.foobnix.pro.pdf.reader"
+                }
+              },
+              "oauth_client": [],
+              "api_key": [
+                {
+                  "current_key": "dummy-api-key"
+                }
+              ],
+              "services": {
+                "appinvite_service": {
+                  "other_platform_oauth_client": []
+                }
+              }
+            }
+          ],
+          "configuration_version": "1"
+        }
+        EOF
+
     - name: Accept SDK Licenses
       run: yes | "$ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager" --licenses || true