Bump dnspython from 2.3.0 to 2.6.1 in the pip group across 1 directory

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


Updates `dnspython` from 2.3.0 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@v2.3.0...v2.6.1)

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

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

backend/requirements.txt

@@ -3,7 +3,7 @@ certifi==2023.7.22
 charset-normalizer==3.1.0
 click==8.1.3
 databases==0.7.0
-dnspython==2.3.0
+dnspython==2.6.1
 email-validator==1.3.1
 fastapi==0.109.1
 fastapi-utils==0.2.1

requirements.txt

@@ -3,7 +3,7 @@ certifi==2023.7.22
 charset-normalizer==3.1.0
 click==8.1.3
 databases==0.7.0
-dnspython==2.3.0
+dnspython==2.6.1
 email-validator==1.3.1
 fastapi==0.109.1
 fastapi-utils==0.2.1