Re-add build job

Author: Andre601

.github/workflows/generate_javadoc.yml

@@ -26,6 +26,27 @@ jobs:
         github_token: ${{ secrets.GITHUB_TOKEN }}
         publish_dir: ./docs
         commit_message: "Update Docs (${GITHUB_SHA:0:7})"
+  generateJars:
+    needs: [generateJavadoc]
+    if: success()
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout Code
+      uses: actions/checkout@v2.3.4
+    - name: Set up Java 11
+      uses: actions/setup-java@v1
+      with: 
+        java-version: 1.11
+    - name: Generate Jars
+      run: ./gradlew build
+    - name: Zip files
+      working-directory: ./build/libs
+      run: zip JavaBotBlockAPI-${{ github.event.release.tag_name }}.zip *.jar
+    - name: Upload files
+      uses: AButler/upload-release-assets@v2.0
+      with: 
+        files: 'build/libs/JavaBotBlockAPI-${{ github.event.release.tag_name }}.zip;build/libs/*.jar'
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
   sendMessage:
     needs: [generateJavadoc]
     if: success()