Update GitHub action build script

.github/workflows/build.yml

@@ -1,24 +1,23 @@
-name: SonarCloud
+name: Build
 on:
   push:
     branches:
       - develop
-      - master
   pull_request:
     types: [opened, synchronize, reopened]
 jobs:
   build:
-    name: Build and analyze
+    name: Build
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
         with:
           fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
-      - name: Set up JDK 17
+      - name: Set up JDK 21
         uses: actions/setup-java@v3
         with:
           distribution: 'adopt'
-          java-version: 17
+          java-version: '21'
       - name: Cache SonarCloud packages
         uses: actions/cache@v3
         with:
@@ -36,3 +35,11 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}  # Needed to get PR information, if any
           SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
         run: mvn -B verify org.sonarsource.scanner.maven:sonar-maven-plugin:sonar -Dsonar.projectKey=BentoBoxWorld_AcidIsland
+      - run: mvn --batch-mode clean org.jacoco:jacoco-maven-plugin:prepare-agent install
+      - run: mkdir staging && cp target/*.jar staging
+      - name: Save artifacts
+        uses: actions/upload-artifact@v3
+        with:
+          name: Package
+          path: staging
+