Use sapmachine for maven build (#363)

With [latest
version](https://github.com/actions/setup-java/releases/tag/v4.3.0) the
github action actions/setup-java supports installing sapmachine :-)
I think we should advertise our Java VM in our projects.

.github/workflows/maven.yml

@@ -25,6 +25,6 @@ jobs:
       uses: actions/setup-java@v4
       with:
         java-version: 17
-        distribution: 'temurin'
+        distribution: 'sapmachine'
     - name: Build with Maven
       run: mvn -ntp -B clean install