add publish workflow

.github/workflows/publish.yml

@@ -0,0 +1,23 @@
+name: publish
+
+on:
+  release:
+    types: [created]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - name: checkout repository
+      uses: actions/checkout@v2
+    - name: set up java
+      uses: actions/setup-java@v1
+      with:
+        java-version: '11'
+        distribution: 'adopt'
+    - name: build with maven
+      run: mvn --batch-mode --file pom.xml package
+    - name: publish to github packages
+      run: mvn --batch-mode --file pom.xml deploy
+      env:
+        GITHUB_TOKEN: ${{ github.token }}⏎

pom.xml

@@ -46,7 +46,7 @@
     <maven.compiler.source>1.8</maven.compiler.source>
     <maven.compiler.target>1.8</maven.compiler.target>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <revision>1.0.0-SNAPSHOT</revision>
+    <revision>1.0.0</revision>
     <keycloak.version>13.0.1</keycloak.version>
   </properties>