build(deps): bump idna from 3.11 to 3.15 in /src/ContentProcessor

Bumps [idna](https://github.com/kjd/idna) from 3.11 to 3.15.
- [Release notes](https://github.com/kjd/idna/releases)
- [Changelog](https://github.com/kjd/idna/blob/master/HISTORY.md)
- [Commits](kjd/idna@v3.11...v3.15)

---
updated-dependencies:
- dependency-name: idna
  dependency-version: '3.15'
  dependency-type: direct:production
...

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

Author: dependabot[bot]

src/ContentProcessor/requirements.txt

@@ -15,7 +15,7 @@ colorama==0.4.6
 coverage==7.13.5
 cryptography==46.0.7
 dnspython==2.8.0
-idna==3.11
+idna==3.15
 iniconfig==2.3.0
 isodate==0.7.2
 mongomock==4.3.0