fixup(readme): Align references to git repo url

[josegomezr]

Change GIT_USER_ID/GIT_REPO_ID.git for the proper GitHub repo URL.

Additionally, removed references to root permissions for pip install commands.

[rissson]

This README is generated. You'll have to update the template from openapi-generator

[josegomezr]

Hm, looks like I can only remove the setup.py install line, but the placeholders can't be added via config.yaml.

I could only generate a "good" readme with:

uv add "openapi-generator-cli==v7.15.0"
uv run openapi-generator-cli generate \
  --config config.yaml \
  --template-dir templates/ \
  --openapi-generator-ignore-list .openapi-generator-ignore \
  --input-spec ../authentik-source/schema.yml \
  --generator-name python \
  --git-repo-id goauthentik \
  --git-user-id client-python

partial diff on README.md (escaped backticks to keep formatting working)

@@ -30,8 +30,9 @@ Python 3.9+
 If the python package is hosted on a repository, you can install directly using:
 
 \```sh
-pip install git+https://github.com/goauthentik/client-python.git
+pip install git+https://github.com/client-python/goauthentik.git
 \```
+(you may need to run `pip` with root permission: `sudo pip install git+https://github.com/client-python/goauthentik.git`)