Create publish GH Packages action (#469)

Add a new action that published to Github package registry on release

Author: smyrick

.github/workflows/publish-package.yml

@@ -0,0 +1,18 @@
+name: Publish GH Packages
+
+on: [release]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+
+    - name: Set up JDK 11
+      uses: actions/setup-java@v1
+      with:
+        java-version: 11
+
+    - name: Publish to GH Packages
+      run: mvn deploy -Dregistry=https://maven.pkg.github.com/ExpediaGroup -Dtoken=${{ secrets.GH_PUBLISH_PACKAGE_TOKEN }}