source-github should support self-hosted Github instances

[evantahler]

Right now, source-github only connects to api.github.com. To support self-hosted instances, we should:

• add an optional option to the connectors SPEC, api_url which has a default value of api.github.com (to make this change backwards compatible).
• Update the code to use the new config option
• Add "${api_url}" to the connector's allowed_hosts

[erohmensing]

The person impleemnting this can take inspiration from source-gitlab, which supports users providing their own api_url. In the case of gitlab it's required (not sure if it should be actually), but it shouldn't be in the case of github - api.github.com should remain the default value if the user. doesn't provide one.

[btkcodedev]

I would like to work on this issue

[btkcodedev]

Also one small clarification on #24007 (comment)
Could you please specify where the allowed_hosts reside?

[btkcodedev]

Please assign it to me @YowanR

[YowanR]

Assigning it to you @btkcodedev ! This should be a good one! 🚀

[evantahler]

Also one small clarification on #24007 (comment) Could you please specify where the allowed_hosts reside?

Allowed hosts live here and tell the airbyte server which hosts a connector should be allowed to access. You'll be adding something like "${api_url}" which would pluck the value from the connector's configuration

[btkcodedev]

Thanks for the quick response @evantahler 🚀

[btkcodedev]

@YowanR PR raised and ready for review

[evantahler]

^ this is the PR #24095

[btkcodedev]

Unassigning due to higher complexity than expected.
Community members are free to take this issue for assignment :)

[patkaehuaea]

@YowanR Would you be able to assign this issue to me? I opened PR #30076. cc: @btkcodedev