Use SHA instead of versions in GH actions

Author: marko-bekhta

.github/workflows/build.yml

@@ -22,10 +22,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
     - name: Set up JDK 17
-      uses: actions/setup-java@v4
+      uses: actions/setup-java@3a4f6e1af504cf6a31855fa899c6aa5355ba6c12 # v4.7.0
       with:
         distribution: temurin
         java-version: 17