gh action checkout action version bump

Author: eguzki

.github/workflows/build-image.yaml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Add latest tag
         if: ${{ github.ref_name == env.MAIN_BRANCH_NAME }}
         id: add-latest-tag