handle multiple commits

.gitea/workflows/update-child-repos.yaml

@@ -25,7 +25,7 @@ jobs:
           git config --global user.email "${GIT_EMAIL}"
           git config --global credential.helper store
           echo "https://${GIT_EMAIL//@/%40}:${GIT_TOKEN}@git.bjphoster.com" > ~/.git-credentials
-          ./update_child_repos.sh
+          ./update_child_repos.sh "${{ github.event.before }}"
         env:
           GIT_NAME: ${{ secrets.GIT_NAME }}
           GIT_EMAIL: ${{ secrets.GIT_EMAIL }}