Bump idna from 3.3 to 3.7 in /frameworks/Python/starlette

Bumps [idna](https://github.com/kjd/idna) from 3.3 to 3.7.
- [Release notes](https://github.com/kjd/idna/releases)
- [Changelog](https://github.com/kjd/idna/blob/master/HISTORY.rst)
- [Commits](https://github.com/kjd/idna/compare/v3.3...v3.7)

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

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

frameworks/Python/starlette/requirements.txt

@@ -1,7 +1,7 @@
 asyncpg==0.26.0
 gunicorn==20.1.0
 httptools==0.5.0
-idna==3.3
+idna==3.7
 Jinja2==3.1.3
 MarkupSafe==2.1.1
 python-dotenv==0.20.0