[build][ci] update env service account

.circleci/config.yml

@@ -86,7 +86,6 @@ defaults: &defaults
   working_directory: ~/react-native-firebase
   environment:
   - GIT_COMMIT_DESC: git log --format=oneline -n 1 $CIRCLE_SHA1
-  - FB_ADMIN_SERVICE_ACCOUNT: $FIREBASE_SERVICE_ACCOUNT
 
 # JAVASCRIPT
 js_defaults: &js_defaults

tests/helpers/index.js

@@ -76,7 +76,7 @@ global.firebaseAdmin = require('firebase-admin');
 
 firebaseAdmin.initializeApp({
   credential: firebaseAdmin.credential.cert(
-    JSON.parse(process.env.FB_ADMIN_SERVICE_ACCOUNT)
+    JSON.parse(process.env.FIREBASE_SERVICE_ACCOUNT)
   ),
   databaseURL: 'https://rnfirebase-b9ad4.firebaseio.com',
 });