Run Danger from GHA (#5224)

* Run Danger from GHA

* Formatting

* Fix steps

* Formatting

* Remove Danger from Travis

.github/workflows/danger.yml

@@ -0,0 +1,16 @@
+name: danger
+
+on:
+  pull_request
+
+jobs:
+  danger:
+    runs-on: macos-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Setup Bundler
+      run: scripts/setup_bundler.sh
+    - name: Danger
+      env:
+        DANGER_GITHUB_API_TOKEN: ${{ secrets.DangerGitHubAPIToken }}
+      run:  '[ ! -z $DANGER_GITHUB_API_TOKEN ] && bundle exec danger || echo "Skipping Danger for External Contributor"'

.travis.yml

@@ -11,9 +11,6 @@ cache:
 stages:
   - test
 
-before_script:
-  - '[ ! -z $DANGER_GITHUB_API_TOKEN ] && bundle exec danger || echo "Skipping Danger for External Contributor"'
-
 jobs:
   include:
     # The order of builds matters (even though they are run in parallel):