Use the gradle wrapper

Author: scandel

.github/workflows/gradle.yml

@@ -30,17 +30,17 @@ jobs:
           cache: gradle
 
       - name: Print Gradle version
-        run: gradle --version
+        run: ./gradlew --version
 
       - name: Build plugin
         run: |
           echo "Building plugin ${{ env.PLUGIN_NAME }}, located at ${{ env.PLUGIN_DIR }}. Using Gradle user home at ${{ env.GRADLE_USER_HOME }}"
-          gradle -p ${{ env.PLUGIN_DIR }} clean build
+          ./gradlew -p ${{ env.PLUGIN_DIR }} clean build
 
       - name: Extract version
         id: get_version
         run: |
-          VERSION=$(gradle -p ${{ env.PLUGIN_DIR }} :version -q | tail -n 1)
+          VERSION=$(./gradlew -p ${{ env.PLUGIN_DIR }} :version -q | tail -n 1)
           echo "VERSION=$VERSION" >> $GITHUB_ENV
           echo "Built version $VERSION of plugin ${{ env.PLUGIN_NAME }}"