Bump idna from 3.4 to 3.7 in /ui/backend/server

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](kjd/idna@v3.4...v3.7)

---
updated-dependencies:
- dependency-name: idna
  dependency-version: '3.7'
  dependency-type: direct:production
...

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

Author: dependabot[bot]

ui/backend/server/requirements.txt

@@ -26,7 +26,7 @@ django-extensions==3.2.3
 django-ninja==1.0b1
 envier==0.4.0
 frozenlist==1.4.0
-idna==3.4
+idna==3.7
 importlib-metadata==6.8.0
 jmespath==1.0.1
 multidict==6.0.4