Update setuptools requirement from ~=73.0.1 to ~=75.5.0

Updates the requirements on [setuptools](https://github.com/pypa/setuptools) to permit the latest version.
- [Release notes](https://github.com/pypa/setuptools/releases)
- [Changelog](https://github.com/pypa/setuptools/blob/main/NEWS.rst)
- [Commits](pypa/setuptools@v73.0.1...v75.5.0)

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

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

requirements.txt

@@ -1,5 +1,5 @@
 Django==5.1
 requests==2.32.3
-setuptools~=73.0.1
+setuptools~=75.5.0
 django-appointment==3.6.4
 django-dotenv==1.4.2