Update CI settings

Author: JeanMarc van Leerdam

.github/workflows/scala.yml

@@ -14,10 +14,12 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
-    - name: Set up JDK 1.8
-      uses: actions/setup-java@v1
+    - uses: actions/checkout@v4
+    - name: Set up JDK
+      uses: actions/setup-java@v4
       with:
-        java-version: 1.8
+        java-version: 17
+    - uses: sbt/setup-sbt@v1
     - name: Run tests
+      shell: bash
       run: sbt test