Bump sqlfluff from 4.0.4 to 4.1.0 in /src

Bumps [sqlfluff](https://github.com/sqlfluff/sqlfluff) from 4.0.4 to 4.1.0.
- [Release notes](https://github.com/sqlfluff/sqlfluff/releases)
- [Changelog](https://github.com/sqlfluff/sqlfluff/blob/main/CHANGELOG.md)
- [Commits](sqlfluff/sqlfluff@4.0.4...4.1.0)

---
updated-dependencies:
- dependency-name: sqlfluff
  dependency-version: 4.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

src/requirements.txt

@@ -4,4 +4,4 @@ gunicorn==25.2.0
 pytest==9.0.2
 pytest-watch==4.2.0
 pytest-cov==7.1.0
-sqlfluff==4.0.4
+sqlfluff==4.1.0