Bump sqlparse from 0.5.1 to 0.5.4 in /example

Bumps [sqlparse](https://github.com/andialbrecht/sqlparse) from 0.5.1 to 0.5.4.
- [Changelog](https://github.com/andialbrecht/sqlparse/blob/master/CHANGELOG)
- [Commits](https://github.com/andialbrecht/sqlparse/compare/0.5.1...0.5.4)

---
updated-dependencies:
- dependency-name: sqlparse
  dependency-version: 0.5.4
  dependency-type: direct:production
...

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

example/requirements.txt

@@ -13,6 +13,6 @@ requests==2.32.3
 rfc3987==1.3.8
 signposting==0.9.9
 soupsieve==2.6
-sqlparse==0.5.1
+sqlparse==0.5.4
 urllib3==2.2.3
 rocrate==0.11.0