Update GitHub Action versions

Author: Atry

.github/workflows/scala.yml

@@ -16,16 +16,16 @@ jobs:
         - 2.12.15
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
       with:
         fetch-depth: 0 # Need the git history for sbt-dynver to determine the version
     - name: Set up JDK 11
-      uses: actions/setup-java@v2
+      uses: actions/setup-java@v3
       with:
         java-version: '11'
         distribution: temurin
     - name: Cache SBT
-      uses: actions/cache@v2
+      uses: actions/cache@v3
       with:
         path: | 
           ~/.ivy2/local/