Merge pull request #7454 from TechEmpower/dependabot/pip/frameworks/Python/aiohttp/ujson-5.4.0

Bump ujson from 5.1 to 5.4.0 in /frameworks/Python/aiohttp

frameworks/Python/aiohttp/requirements.txt

@@ -5,5 +5,5 @@ gunicorn==20.1
 jinja2==3.0.3
 psycopg2==2.9.2
 SQLAlchemy==1.4.29
-ujson==5.1
+ujson==5.4.0
 uvloop==0.16