Support passing additionalGrantParameters to OidcClient.refreshTokens and OidcClient.revokeAccessToken

[Eng-Fouad]

Description

I am using Keycloak with a client that is configured to use signed JWT for authentication. This works fine with oidcClient.getTokens:

String jwt = generateJwt();
var tokens = oidcClient.getTokens(Map.of("client_assertion", jwt, "client_assertion_type", "urn:ietf:params:oauth:client-assertion-type:jwt-bearer"));

However, there is no way to specify additional params when calling OidcClient.refreshTokens or OidcClient.revokeAccessToken.

Implementation ideas

No response

[quarkus-bot]

/cc @pedroigor (oidc), @sberyozkin (oidc)