Support for single same uri redirects for OIDC WebClient

[sberyozkin]

Fixes #43937.

This PR enables a single time redirect support when one of GET OidcProvider endpoints (discovery, JWK, or UserInfo) request a redirect exactly to the same URI, as long as one or more cookies are available during such redirect.

it is impossible to avoid adding a property in this case. Some users may already depending on the auto-redirect feature without cookies.

[cescoffier]

LGTM

Do you think we should document this feature?

[github-actions]

🙈 The PR is closed and the preview is expired.

[sberyozkin]

@cescoffier Thanks, sure, will have a look

[sberyozkin]

Hi @cescoffier, I've started documenting it, and thought, may be we should do it when, at some point, the same is supported at the WebClient level, otherwise I'm not sure how to say in the docs: if you'd like to have a same URI redirect supported you must disable auto-following redirects, which does not read very logical :-). I can still do it though if you prefer.
JavaDocs for the OidcCommonConfig#follow-redirects does describe what happens if it is set to false, so may be we can keep this option quite low profile for the moment until Vert.x 5 might start supporting it ?

[sberyozkin]

@cescoffier Let me actually add a few lines

[sberyozkin]

@cescoffier Docs updated, that should be better now

[quarkus-bot]

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[quarkus-bot]

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