Update gem-push.yml

Author: svc-developer

.github/workflows/gem-push.yml

@@ -15,9 +15,9 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: Set up Ruby 2.6
-      uses: actions/setup-ruby@v1
+      uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 2.6.x
+        ruby-version: '2.6'
 
     - name: Publish to RubyGems
       run: |
@@ -28,4 +28,4 @@ jobs:
         gem build avatax.gemspec
         gem push *.gem
       env:
-        GEM_HOST_API_KEY: "${{secrets.RUBYGEMS_AUTH_TOKEN}}"
+        GEM_HOST_API_KEY: "${{secrets.RUBYGEMS_AUTH_TOKEN}}"