improve CI performance

Author: const-cloudinary

.github/workflows/ci.yml

@@ -8,19 +8,26 @@ jobs:
     strategy:
       matrix:
         scala-version: ['2.11.8', '2.12.8']
-        java-version: ['8']
 
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
 
-      - name: Setup Scala and SBT
-        uses: olafurpg/setup-scala@v14
+      - name: Set up JDK 8 with SBT cache
+        uses: actions/setup-java@v4
         with:
-          java-version: ${{ matrix.java-version }}
+          distribution: 'temurin'
+          java-version: '8'
+          cache: 'sbt'
 
-      - name: Install jq
-        run: sudo apt-get update && sudo apt-get install -y jq
+      - name: Install SBT and jq
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y apt-transport-https curl gnupg jq
+          echo "deb https://repo.scala-sbt.org/scalasbt/debian all main" | sudo tee /etc/apt/sources.list.d/sbt.list
+          curl -sL "https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x2EE0EA64E40A89B84B2DF73499E82A75642AC823" | sudo apt-key add
+          sudo apt-get update
+          sudo apt-get install -y sbt
 
       - name: Set CLOUDINARY_URL
         run: |