Use coursier/setup-action instead of setup-java in GitHub Actions.

setup-java does not install sbt anymore.

Author: sjrd

.github/workflows/ci.yml

@@ -23,11 +23,10 @@ jobs:
       with:
         node-version: ${{ matrix.node-version }}
     - name: Set up JDK ${{ matrix.java }}
-      uses: actions/setup-java@v3
+      uses: coursier/setup-action@v1
       with:
-        distribution: 'adopt'
-        java-version: ${{ matrix.java }}
-        cache: 'sbt'
+        jvm: temurin:1.${{ matrix.java }}
+        apps: sbt
 
     - name: Cache dependencies
       uses: actions/cache@v3