feat: @Configuration Map

[ndr-brt]

What this PR changes/adds

Permits to inject configurations Map, e.g.

    @SettingContext("web.http")
    @Configuration
    private Map<String, AuthenticationConfiguration> authenticationConfigurationMap;

instead to have to do it manually as for now.
This solution is shown in ApiAuthenticationConfigurationExtension, LocalPublicKeyDefaultExtension and TrustedIssuerConfigurationExtension

Why it does that

usability

Further notes

• I refactored the setting and config tests A LOT, because they were quite complicated and not well scoped.
• Apparently the InjectionPoint does too much, that's why tests were (and still are IMHO) too complicated. My first thought is that we could/should separate the "resolution" part and introduce a InjectionPointResolver interface, so the resolution logic can be moved there and leave to the InjectionPoint only the "providers" knowledge.

Who will sponsor this feature?

Please @-mention the committer that will sponsor your feature.

Linked Issue(s)

Closes #5648

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