Scrape all KAS metrics inside guest cluster

[csrwng]

What this PR does / why we need it:
We currently sync a servicemonitor into the guest cluster so that KAS
metrics are scraped by the guest CMO. However, the current
servicemonitor only scrapes a single metric from the KAS.

This commit modifies the servicemonitor so it includes all metrics that
are typically scraped in a standalone OCP cluster.

Checklist

• Subject and description added to both, commit and PR.

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: csrwng

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[sjenning]

/lgtm
/retest-required

[openshift-ci-robot]

/retest-required

Remaining retests: 2 against base HEAD 506608b and 8 for PR HEAD 7bf07de in total

[openshift-ci]

@csrwng: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/e2e-aws-nested	7bf07de	link	false	/test e2e-aws-nested
ci/prow/e2e-kubevirt-gcp-ovn	7bf07de	link	false	/test e2e-kubevirt-gcp-ovn

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[openshift-ci-robot]

/retest-required

Remaining retests: 1 against base HEAD 506608b and 7 for PR HEAD 7bf07de in total