Use forgejo actions instead of drone.

.forgejo/workflows/maven-build.yaml

@@ -0,0 +1,22 @@
+on: [push]
+jobs:
+  maven-build:
+    runs-on: docker
+    container:
+      image: node:25-trixie
+    steps:
+      - name: Setup Java
+        uses: actions/setup-java@v5
+        with:
+          distribution: 'temurin'
+          java-version: 25
+      - name: Install maven
+        run: |
+          apt-get update
+          apt-get install -y maven
+      - name: Checkout repository
+        uses: actions/checkout@v6
+      - name: Run maven build
+        run: mvn clean install -DskipTests=true -Dmaven.javadoc.skip=true -B -V
+      - name: Run tests
+        run: mvn test -B