Merge pull request #49 from sullis/setup-java-v2-cache

setup-java v2 cache feature
diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 4addcc6..f0f1410 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -32,16 +32,11 @@
 
     steps:
     - uses: actions/checkout@v2.3.4
-    - uses: actions/cache@v2.1.6
-      with:
-        path: ~/.m2/repository
-        key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-        restore-keys: |
-          ${{ runner.os }}-maven-
     - name: Set up JDK ${{ matrix.java }}
       uses: actions/setup-java@v2
       with:
         distribution: adopt
         java-version: ${{ matrix.java }}
+        cache: 'maven'
     - name: Build with Maven
       run: mvn -V -Ddoclint=all --file pom.xml --no-transfer-progress