Bump actions/setup-java from 1 to 2.3.1

.github/workflows/IMDG-snapshot.yml

@@ -15,10 +15,11 @@ jobs:
     steps:
       - uses: actions/[email protected]
       - name: Setup JDK
-        uses: actions/setup-java@v1
+        uses: actions/setup-java@v2.3.1
         with:
           java-version: ${{ matrix.java }}
           architecture: ${{ matrix.architecture }}
+          distribution: 'zulu'
 
       - uses: actions/[email protected]
         with:

.github/workflows/pr-builder.yml

@@ -18,10 +18,11 @@ jobs:
     steps:
       - uses: actions/[email protected]
       - name: Setup JDK
-        uses: actions/setup-java@v1
+        uses: actions/setup-java@v2.3.1
         with:
           java-version: ${{ matrix.java }}
           architecture: ${{ matrix.architecture }}
+          distribution: 'zulu'
 
       - uses: actions/[email protected]
         with:

.github/workflows/publish-snapshot.yml

@@ -16,10 +16,11 @@ jobs:
     steps:
       - uses: actions/[email protected]
       - name: Setup JDK
-        uses: actions/setup-java@v1
+        uses: actions/setup-java@v2.3.1
         with:
           java-version: ${{ matrix.java }}
           architecture: ${{ matrix.architecture }}
+          distribution: 'zulu'
 
       - uses: actions/[email protected]
         with:
@@ -35,7 +36,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Set up Maven Central Repository
-        uses: actions/setup-java@v1
+        uses: actions/setup-java@v2.3.1
         with:
           java-version: 1.8
           server-id: snapshot-repository