Extract GitHub Release message from Git tag

Author: bastianeicher

.github/workflows/build.yml

@@ -34,9 +34,24 @@ jobs:
           path: '*/build/test-results/test/TEST-*.xml'
 
       # Release
+      - name: Get tag message
+        if: github.ref_type == 'tag'
+        id: tag_message
+        run: |
+          {
+            echo "message<<EOF"
+            git fetch -f origin tag ${{github.ref_name}}
+            git tag -l ${{github.ref_name}} --format="%(contents)"
+            echo "EOF"
+          } >> "$GITHUB_OUTPUT"
       - name: Create GitHub Release
         if: github.ref_type == 'tag'
-        uses: softprops/action-gh-release@v1
+        uses: softprops/action-gh-release@v2
+        with:
+          body: |
+            **[Maven package](https://mvnrepository.com/artifact/typedrest.net/typedrest/${{steps.gitversion.outputs.semVer}})**
+            ## Changes
+            ${{steps.tag_message.outputs.message}}
 
       # Publish
       - name: Publish packages (GitHub)