ci: allow SQLFluff annotate to fail on fork PRs

Fork tokens cannot create check runs; lint already completed before annotate.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: Chessing234

.github/workflows/lint_sqlfluff.yml

@@ -35,8 +35,12 @@ jobs:
         shell: bash
         run: sqlfluff lint --format github-annotation --annotation-level failure --nofail ${{ steps.get_files_to_lint.outputs.lintees }} > annotations.json
       - name: Annotate
+        # Fork PRs cannot create check runs with GITHUB_TOKEN; lint already ran.
+        continue-on-error: true
+        if: steps.get_files_to_lint.outputs.lintees != ''
         uses: yuzutech/annotations-action@v0.6.0
         with:
           repo-token: "${{ secrets.GITHUB_TOKEN }}"
           title: "SQLFluff Lint"
-          input: "./annotations.json"
+          input: "./annotations.json"
+          ignore-missing-file: true