dependency: (deps): bump sqlparse from 0.5.2 to 0.5.3 in /backend

Bumps [sqlparse](https://github.com/andialbrecht/sqlparse) from 0.5.2 to 0.5.3.
- [Release notes](https://github.com/andialbrecht/sqlparse/releases)
- [Changelog](https://github.com/andialbrecht/sqlparse/blob/master/CHANGELOG)
- [Commits](andialbrecht/sqlparse@0.5.2...0.5.3)

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

Signed-off-by: dependabot[bot] <[email protected]>

backend/requirements.txt

@@ -52,7 +52,7 @@ pytz==2023.3.post1
 PyYAML==6.0.2
 six==1.17.0
 sniffio==1.3.0
-sqlparse==0.5.2
+sqlparse==0.5.3
 tqdm==4.67.1
 typing_extensions==4.9.0
 tzdata==2023.4