GH-18 - Add GitHub actions workflows for releases.

.github/workflows/milestone.yaml

@@ -0,0 +1,40 @@
+name: Release Milestones
+
+on:
+  push:
+    branches: [ release/milestone ]
+
+jobs:
+  build:
+    name: Release project
+    runs-on: ubuntu-latest
+
+    steps:
+
+    - name: Check out sources
+      uses: actions/checkout@v2
+
+    - name: Set up JDK 17
+      uses: actions/setup-java@v2
+      with:
+        distribution: 'temurin'
+        java-version: 17
+        cache: 'maven'
+
+    - name: Build with Maven
+      run: ./mvnw -B
+
+    - name: Deploy to Artifactory
+      env:
+        ARTIFACTORY_USERNAME: ${{ secrets.ARTIFACTORY_USERNAME }}
+        ARTIFACTORY_PASSWORD: ${{ secrets.ARTIFACTORY_PASSWORD }}
+      run: ./mvnw -B clean deploy -Pci,artifactory
+
+    - name: Setup Graphviz
+      uses: ts-graphviz/setup-graphviz@v1
+
+    - name: Deploy documentation
+      env:
+        ARTIFACTORY_USERNAME: ${{ secrets.ARTIFACTORY_USERNAME }}
+        ARTIFACTORY_PASSWORD: ${{ secrets.ARTIFACTORY_PASSWORD }}
+      run: ./mvnw -B clean deploy -Pdocumentation