Updating GHES workflows

ci/properties/scala.properties.json

@@ -1,6 +0,0 @@
-{
-    "name": "Scala",
-    "description": "Build and test a Scala project with SBT.",
-    "iconName": "scala",
-    "categories": ["Continuous integration", "Scala", "Java"]
-}

ci/scala.yml

@@ -1,26 +0,0 @@
-name: Scala CI
-
-on:
-  push:
-    branches: [ $default-branch ]
-  pull_request:
-    branches: [ $default-branch ]
-
-permissions:
-  contents: read
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v3
-    - name: Set up JDK 11
-      uses: actions/setup-java@v3
-      with:
-        java-version: '11'
-        distribution: 'temurin'
-        cache: 'sbt'
-    - name: Run tests
-      run: sbt test