Update github actions (#60)

Author: xuwei-k

.github/workflows/sbt.yml

@@ -20,11 +20,11 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - name: Set up JDK
-        uses: actions/setup-java@v2
+        uses: actions/setup-java@v4
         with:
           java-version: 11
           distribution: temurin