Bump actions/setup-java to version 2 for pitest workflows

Author: scordio

.github/workflows/pitest-receive-pr.yml

@@ -34,9 +34,10 @@ jobs:
           path: ~/.m2/repository
           key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
           restore-keys: ${{ runner.os }}-maven-
-      - name: Setup Java JDK
-        uses: actions/setup-java@v1.4.3
+      - name: Setup Java
+        uses: actions/setup-java@v2
         with:
+          distribution: 'zulu'
           java-version: 11
       - name: run pitest
         # pitest has been bound to a profile called pitest for normal running

.github/workflows/pitest-updated-pr.yml

@@ -26,9 +26,10 @@ jobs:
     steps:
       - name: debug
         uses: hmarr/debug-action@v2
-      - name: Setup Java JDK
-        uses: actions/setup-java@v1.4.3
+      - name: Setup Java
+        uses: actions/setup-java@v2
         with:
+          distribution: 'zulu'
           java-version: 11
       - name: Download artifact
         uses: dawidd6/action-download-artifact@v2