Bump idna from 3.4 to 3.7

Bumps [idna](https://github.com/kjd/idna) from 3.4 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/v3.4...v3.7)

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

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

requirements.txt

@@ -11,7 +11,7 @@ cryptography==42.0.4; platform_machine != 'armv7l'
 cssutils==2.6.0
 defusedxml==0.7.1
 Flask==2.3.2
-idna==3.4
+idna==3.7
 itsdangerous==2.1.2
 Jinja2==3.1.3
 MarkupSafe==2.1.2