Update maven.yml

Author: FrancescoDiSalesGithub

.github/workflows/maven.yml

@@ -16,8 +16,13 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-    - uses: actions/setup-java@v1
+    - name: Set up JDK 14  
+      uses: actions/setup-java@v1
+      with:
+        java-version: 14
+    - name: Build with maven 
     - run: mvn -B package --file pom.xml
+    - name: Uploading jar
     - run: mkdir staging && cp target/*.jar staging
     - uses: actions/upload-artifact@v2
       with: