ci(deps): disable lockfile workflow for Dependabot PRs

The new Dependabot grouping strategy should handle version alignment.
This workflow was causing conflicts by running syncpack which reverted
Dependabot's version updates back to main branch versions.

Author: Mearman

.github/workflows/dependabot-lockfile.yml

@@ -11,8 +11,9 @@ permissions:
 
 jobs:
   lockfile:
-    # Check if PR was created by Dependabot (works even when humans reopen the PR)
-    if: github.event.pull_request.user.login == 'dependabot[bot]'
+    # DISABLED: Dependabot groups now handle version alignment
+    # This workflow was causing conflicts by reverting Dependabot's version updates
+    if: false
     runs-on: ubuntu-latest
     env:
       # Use environment variables for any github context to avoid injection risks