build(deps): bump setuptools from 70.0.0 to 78.1.1 in /VC+/docs

Bumps [setuptools](https://github.com/pypa/setuptools) from 70.0.0 to 78.1.1.
- [Release notes](https://github.com/pypa/setuptools/releases)
- [Changelog](https://github.com/pypa/setuptools/blob/main/NEWS.rst)
- [Commits](pypa/setuptools@v70.0.0...v78.1.1)

---
updated-dependencies:
- dependency-name: setuptools
  dependency-version: 78.1.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

VC+/docs/requirements.txt

@@ -1,4 +1,4 @@
-setuptools==70.0.0
+setuptools==78.1.1
 
 django==4.2.21
 channels==1.1.5
@@ -16,7 +16,7 @@ pydiscourse==0.9.0
 django-taggit-autosuggest==0.3.8
 pillow==10.3.0
 
-setuptools==70.0.0  # This should be removed after going to python 3.9
+setuptools==78.1.1  # This should be removed after going to python 3.9
 
 djangorestframework==3.15.2
 django-webpack-loader==1.5.0