Bump dnspython in /app in the pip group across 1 directory

Bumps the pip group with 1 update in the /app directory: [dnspython](https://github.com/rthalley/dnspython).


Updates `dnspython` from 2.5.0 to 2.6.1
- [Release notes](https://github.com/rthalley/dnspython/releases)
- [Changelog](https://github.com/rthalley/dnspython/blob/main/doc/whatsnew.rst)
- [Commits](rthalley/dnspython@v2.5.0...v2.6.1)

---
updated-dependencies:
- dependency-name: dnspython
  dependency-type: indirect
  dependency-group: pip
...

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