Update actions/setup-java to v2
diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index eb39c5d..4d7fff4 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -41,9 +41,10 @@
             maven-${{ matrix.os }}-
 
       - name: Set up JDK 1.8
-        uses: actions/setup-java@v1
+        uses: actions/setup-java@v2
         with:
-          java-version: 1.8
+          java-version: '8'
+          distribution: 'adopt'
 
       - name: Build with Maven
         run: mvn clean verify -e -B -V