Update actions/setup-java action to v2

Author: renovate[bot]

.github/workflows/branch-validations.yaml

@@ -21,8 +21,9 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Set up JDK 11
-        uses: actions/setup-java@v1
+        uses: actions/setup-java@v2
         with:
+          distribution: zulu
           java-version: 11
       - name: Cache Maven packages
         uses: actions/cache@v2
@@ -39,8 +40,9 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Set up JDK 11
-        uses: actions/setup-java@v1
+        uses: actions/setup-java@v2
         with:
+          distribution: zulu
           java-version: 11
       - name: Cache Maven packages
         uses: actions/cache@v2
@@ -57,8 +59,9 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Set up JDK 11
-        uses: actions/setup-java@v1
+        uses: actions/setup-java@v2
         with:
+          distribution: zulu
           java-version: 11
       - name: Cache Maven packages
         uses: actions/cache@v2

.github/workflows/deploy-published-releases.yaml

@@ -13,8 +13,9 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Set up Maven Central Repository
-        uses: actions/setup-java@v1
+        uses: actions/setup-java@v2
         with:
+          distribution: zulu
           java-version: 1.8
           server-id: ossrh
           server-username: MAVEN_USERNAME