build(deps): bump dnspython from 2.2.1 to 2.6.1

Bumps [dnspython](https://github.com/rthalley/dnspython) from 2.2.1 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@v2.2.1...v2.6.1)

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

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

requirements.txt

@@ -8,7 +8,7 @@ Bcrypt-Flask==1.0.2
 giturlparse~=0.10.0
 click-option-group~=0.5.5
 cryptography>=41.0.3
-dnspython==2.2.1
+dnspython==2.6.1
 flask-cors==3.0.10
 flask-marshmallow~=0.14.0
 flask-restful==0.3.9