Bump sqlparse from 0.4.2 to 0.4.4

Bumps [sqlparse](https://github.com/andialbrecht/sqlparse) from 0.4.2 to 0.4.4.
- [Release notes](https://github.com/andialbrecht/sqlparse/releases)
- [Changelog](https://github.com/andialbrecht/sqlparse/blob/master/CHANGELOG)
- [Commits](andialbrecht/sqlparse@0.4.2...0.4.4)

---
updated-dependencies:
- dependency-name: sqlparse
  dependency-type: direct:production
...

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

requirements.txt

@@ -18,7 +18,7 @@ pytest-cov==2.11.1
 pytest-django==4.2.0
 pytz==2021.1
 regex==2021.4.4
-sqlparse==0.4.2
+sqlparse==0.4.4
 toml==0.10.2
 typed-ast==1.4.3
 typing-extensions==3.7.4.3