Update gradle.yml

.github/workflows/gradle.yml

@@ -10,15 +10,33 @@ on:
  
 jobs:
   test:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v2.0.0
+      uses: actions/checkout@v2.3.*
     - name: Setup Java JDK
-      uses: actions/setup-java@v1.3.0
+      uses: actions/setup-java@v1.4.2
       with:
         java-version: 1.8
+    - name: Cache Gradle
+      uses: actions/cache@v2
+      with:
+        path: |
+          ~/.gradle/caches
+          ~/.gradle/wrapper
+        key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*') }}
+        restore-keys: |
+          ${{ runner.os }}-gradle-
+    - name: Cache local Maven repository
+      uses: actions/cache@v2
+      with:
+        path: ~/.m2/repository
+        key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+        restore-keys: |
+          ${{ runner.os }}-maven-
+    - name: Test enviornment
+      run: echo $GITHUB_WORKSPACE
     - name: Download BuildTools
       run: wget https://hub.spigotmc.org/jenkins/job/BuildTools/lastSuccessfulBuild/artifact/target/BuildTools.jar
     - name: Run BuildTools