FEAT: support kserve with authorino

[aslakknutsen]

• Activate extauth for grpc traffic
• Set host on requests from activator to trigger authconfig
• Temp Authorization header fix to workaround https://issues.redhat.com/browse/OSSM-4873

[bartoszmajsak]

@aslakknutsen how can I test it?

[aslakknutsen]

Not much to test beyond that they get installed. This depends on a few other PRs coming elsewhere

[aslakknutsen]

You can always setup a echo service on port 8013 with label "component: predicator" and;

• call it by ip and use header k-original-host with a host name and see it end up as Host in the echo request
• call something that's "pass_through" in extAuth with an Authorization header and see it's still there when it reach the target

[bartoszmajsak]

As for the linter errors, I will soon push cleanup to the target branch so we will see if there's anything left in your PR

[bartoszmajsak]

Closes, as it's been reworked in #13