Unsupported git service

[raphi-0901]

I try to configure my git services for pull requests as stated here:
https://github.com/jesseduffield/lazygit/blob/master/docs/Config.md#custom-pull-request-urls

So this is my current config.yml:

services:
  'github.com': 'github:github.com'

But when I try to run the command, I just get this error message:

My current version is:

commit=5e388e21c8ca6aa883dbcbe45c47f6fdd5116815, build date=2023-08-07T14:05:48Z, build source=binaryRelease, version=0.40.2, os=linux, arch=amd64, git version=2.34.1

Am I missing something or is this a bug?