HOSTEDCP-1063: Account for guest webhook URLs without a port

[muraee]

What this PR does / why we need it:
snapshot.storage.k8s.io webhook was not detected because of this, although the service didn't have the label yet.

PR to add the label to the csi-snapshot-webhook service:
openshift/cluster-csi-snapshot-controller-operator#155

Which issue(s) this PR fixes (optional, use fixes #<issue_number>(, fixes #<issue_number>, ...) format, where issue_number might be a GitHub issue, or a Jira story:
Fixes #

Checklist

• Subject and description added to both, commit and PR.
• Relevant issues have been referenced.
• This change includes docs.
• This change includes unit tests.

[openshift-ci-robot]

@muraee: This pull request references HOSTEDCP-1063 which is a valid jira issue.

In response to this:

What this PR does / why we need it:
snapshot.storage.k8s.io webhook was not detected because of this, although the service didn't have the label yet.

PR to add the label to the csi-snapshot-webhook service:
openshift/cluster-csi-snapshot-controller-operator#155

Which issue(s) this PR fixes (optional, use fixes #<issue_number>(, fixes #<issue_number>, ...) format, where issue_number might be a GitHub issue, or a Jira story:
Fixes #

Checklist

• Subject and description added to both, commit and PR.
• Relevant issues have been referenced.
• This change includes docs.
• This change includes unit tests.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[muraee]

/test e2e-aws

[muraee]

/test e2e-aws

[openshift-ci]

/test remaining-required

[bryan-cox]

/lgtm

[csrwng]

/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: bryan-cox, csrwng, muraee

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• OWNERS [csrwng]

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[muraee]

/ok-to-test

[openshift-ci]

@muraee: The following test 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-kubevirt-aws-ovn	1017c5e	link	false	/test e2e-kubevirt-aws-ovn

Full PR test history. Your PR dashboard.

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