Change: updated checkout version in GH from v2 to v5 (#321)

Author: fejan-malek

.github/workflows/build.yml

@@ -30,7 +30,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v5
 
       - name: Setup cache environment
         id: cache-env