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Hello Huly team,

I am facing strange issue where github connection works almost fine but an error appears and i cannot connect github to my self hosted instance (uses traefik example). These are environment variables used:

```
GITHUB_URL=https://myprojects.com/github
GITHUB_APP=MyProjects
GITHUB_CLIENT_ID=
GITHUB_CLIENTID=
GITHUB_CLIENT_SECRET=
GITHUB_REDIRECT_URI=https://myprojects.com/auth/github/callback

After redirecting back to my site, i get:

{"level":"info","message":"::ffff:172.19.0.2 - GET /github?code=&state= HTTP/1.1 200 418 - 1.622 ms\n","name":"requests","timestamp":"2025-08-31T19:40:11.728Z"}
{"level":"info","message":"::ffff:172.19.0.2 - GET /config.json HTTP/1.1 200 1071 - 0.514 ms\n","name":"requests","timestamp":"2025-08-31T19:40:11.886Z"}
{"level":"info","message":"::ffff:172.19.0.2 - POST /github/api/v1/auth HTTP/1.1 404 158 - 0.365 ms\n","name":"requests","timestamp":"2025-08-31T19:40:12.013Z"}
```

This is the log that shows what exactly happens when i try to connect github from `settings -> integrations -> Github Integration -> Add -> Authorize Github App`, I get redirected to github asking for permission to connect, and then get redirected back to instance's "Processing complete, redirecting in 3,21, seconds" and page closes but no changes in github integration page. Even after reload no chages.