Bump sqlfluff from 2.3.3 to 2.3.4

Bumps [sqlfluff](https://github.com/sqlfluff/sqlfluff) from 2.3.3 to 2.3.4.
- [Release notes](https://github.com/sqlfluff/sqlfluff/releases)
- [Changelog](https://github.com/sqlfluff/sqlfluff/blob/main/CHANGELOG.md)
- [Commits](sqlfluff/sqlfluff@2.3.3...2.3.4)

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

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

requirements.txt

@@ -1,4 +1,4 @@
-sqlfluff==2.3.3
+sqlfluff==2.3.4
 Flask==3.0.0
 Flask_Limiter==3.5.0
 flask-talisman==1.1.0