Simplify CI

Signed-off-by: Fabio Di Fabio <fabio.difabio@consensys.net>

.github/workflows/workflow.yaml

@@ -7,10 +7,10 @@ on:
   pull_request:
 
 jobs:
-  assemble:
+  all:
     runs-on: ubuntu-latest
     env:
-      GRADLE_OPTS: -Dorg.gradle.daemon=false -Dorg.gradle.parallel=true -Dorg.gradle.workers.max=2
+      GRADLE_OPTS: "-Xmx4g"
 
     steps:
       - name: Checkout
@@ -34,7 +34,7 @@ jobs:
             ${{ runner.os }}-gradle-
 
       - name: Assemble
-        run: ./gradlew clean spotlessCheck compileJava compileTestJava assemble build
+        run: ./gradlew clean spotlessCheck build
 
       - name: Store distribution artifacts
         uses: actions/upload-artifact@v2
@@ -45,9 +45,6 @@ jobs:
       - name: Check Dockerfile syntax
         run: |
           docker run --rm -i hadolint/hadolint < docker/openjdk-17/Dockerfile
-          docker run --rm -i hadolint/hadolint < docker/openjdk-17-debug/Dockerfile
-          docker run --rm -i hadolint/hadolint < docker/openjdk-latest/Dockerfile
-          docker run --rm -i hadolint/hadolint < docker/graalvm/Dockerfile
       - name: Build Docker Image
         run: |
           ./gradlew dockerDist