Renamed pull request job name

Author: lucaneg

.github/workflows/pr.yml

@@ -1,14 +1,14 @@
 # This workflow will build a Java project with Gradle
 # For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
 
-name: Gradle Build
+name: Pull Request Check
 
 on:
   pull_request:
     branches: [ master ]
 
 jobs:
-  build:
+  code-style:
 
     runs-on: ubuntu-latest