feat: customize name of secret

[TartanLeGrand]

Proposed changes

This pull request introduces the ability to customize ClientIDKey and ClientSecretKey variables. These variables can now be modified by setting the environment variables CLIENT_ID_KEY and CLIENT_SECRET_KEY respectively. If these environment variables are not set, the default values (currently "CLIENT_ID" for ClientIDKey and "CLIENT_SECRET" for ClientSecretKey) will be used.

Checklist

• I have read the contributing guidelines and signed the CLA.
• I have referenced an issue containing the design document if my change introduces a new feature.
• I have read the security policy.
• I confirm that this pull request does not address a security vulnerability. If this pull request addresses a security vulnerability, I confirm that I got approval from the maintainers to push the changes.
• I have added tests that prove my fix is effective or that my feature works.
• I have added the necessary documentation within the code base (if appropriate).

Further comments

In this pull request, I have modified ClientIDKey and ClientSecretKey to be configurable via environment variables. This allows for greater flexibility in configuring the system, while maintaining sensible defaults.

[CLAassistant]

All committers have signed the CLA.

[TartanLeGrand]

@Demonsthere can you review this ? 😃

[Demonsthere]

The idea is pretty simple and I see no reason to why not merge it, but need one little thing first ;) As we're adding new config options, with Envs, please update the README accordingly!

[Demonsthere]

Please update readme then we can merge 😉

[afreakk]

Hmm, here the default values went from lowercase to uppercase....
So it kinda broke existing crds