Merge pull request #42 from prabash/fix_git_workflow_checkout

changed workflow to get the submodule recursively with all the revisi…

Author: yampeku

.github/workflows/docker-image.yml

@@ -11,9 +11,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
-          submodules: true
+          submodules: recursive
+          fetch-depth: 0 # get the history to merge correctly
 
       - name: Update submodule to latest
         run: |