build(ci): make linkinator advisory (#30257)

.github/workflows/superset-docs-verify.yml

@@ -16,6 +16,7 @@ jobs:
  # See docs here: https://github.com/marketplace/actions/linkinator
  name: Link Checking
  runs-on: ubuntu-latest
+ continue-on-error: true # This will make the job advisory (non-blocking, no red X)
  steps:
  - uses: actions/checkout@v4
  - uses: JustinBeckwith/linkinator-action@v1.10.4