Add deploy workflow for pushing release branch

.github/workflows/deploying.yml

@@ -4,6 +4,7 @@ on:
   push:
     branches:
       - master
+      - 'release-*'
 
 jobs:
   build:
@@ -54,7 +55,6 @@ jobs:
     - name: Test
       run: bundle exec fastlane test
     - name: Deploy
-      if: github.event_name == 'push' && github.ref == 'refs/heads/master'
       run: bundle exec fastlane ${{ matrix.channel }}
       env:
         APPLE_ID: ${{ secrets.APPLE_ID }}