move to github actions

Author: zeitlinger

.circleci/config.yml

@@ -10,7 +10,14 @@ jobs:
       - name: Set up JDK
         uses: actions/setup-java@v4
         with:
-          java-version: 8
+          java-version: 17
           distribution: temurin
+          cache: 'maven'
+      - name: Shaded dependencies
+        run: |
+          cd prometheus-metrics-shaded-dependencies
+          ../mvnw clean install
       - name: Run the Maven verify phase
-        run: ./mvnw --batch-mode verify
+        run: |
+          ./mvnw clean install
+          ./mvnw javadoc:jar