Replace deprecated olafurpg/setup-scala with actions/setup-java

Author: davidfurey

.github/workflows/ci.yml

@@ -8,6 +8,9 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - uses: coursier/cache-action@v5
-      - uses: olafurpg/setup-scala@v10
+      - uses: actions/setup-java@v2
+        with:
+          java-version: '11'
+          distribution: 'adopt'
       - run: git fetch --unshallow
       - run: sbt +test libraryJVM/versionPolicyCheck

.github/workflows/release.yml

@@ -9,7 +9,10 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - uses: actions/[email protected]
-      - uses: olafurpg/setup-scala@v10
+      - uses: actions/setup-java@v2
+        with:
+          java-version: '11'
+          distribution: 'adopt'
       - uses: coursier/cache-action@v5
       - run: git fetch --unshallow
       - run: sbt versionCheck ci-release