Update `actions/setup-java` to v2 (#177)

* Remove trailing whitespace

* Update `actions/setup-java`
diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 163e3f9..bc8dda7 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -30,12 +30,12 @@
         include:
           - java: 17-ea
             os: ubuntu-latest
-            experimental: true        
+            experimental: true
           - java: 17-ea
             os: windows-latest
-            experimental: true        
+            experimental: true
       fail-fast: false
-        
+
     steps:
     - uses: actions/checkout@v2.3.4
     - uses: actions/cache@v2.1.4
@@ -45,8 +45,9 @@
         restore-keys: |
           ${{ runner.os }}-maven-
     - name: Set up JDK ${{ matrix.java }}
-      uses: actions/setup-java@v1.4.3
+      uses: actions/setup-java@v2
       with:
+        distribution: 'zulu'
         java-version: ${{ matrix.java }}
     - name: Build with Maven
       run: mvn -V --file pom.xml --no-transfer-progress -DtrimStackTrace=false