Allow list of string for token audiences

[MarcAnB]

Describe the bug

Hello,
I am trying to set the audiences as explained:
https://quarkus.io/guides/security-openid-connect-client-reference

Using quarkus.oidc-client.grant-options.client.audience, I would like to define a list of audiences.
I tried "audience1,audience2" but it was not working.

Should it be fixed?

Expected behavior

No response

Actual behavior

No response

How to Reproduce?

No response

Output of uname -a or ver

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Output of java -version

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Quarkus version or git rev

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Build tool (ie. output of mvnw --version or gradlew --version)

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Additional information

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[quarkus-bot]

/cc @pedroigor (bearer-token,oidc), @sberyozkin (bearer-token,oidc)

[sberyozkin]

@MarcAnB Until now, values of the extra parameters have been treated as single values. Perhaps, it makes sense to introduce a dedicated audience property rather than treating every extra parameter value as a list of strings, we may need to do it later anyway, but the audience is a well known property...
It should become an enhancement request