NO-ISSUE: Bump OCP versions: 4.15

[danmanor]

OpenShift updates: 4.15.0-rc.7 -> 4.15.0-rc.8, 4.15.0-rc.7-multi -> 4.15.0-rc.8-multi
RHCOS updates:

/test edge-e2e-metal-assisted-4-15
/cc @osherdp @gamli75

[openshift-ci-robot]

@danmanor: This pull request explicitly references no jira issue.

In response to this:

OpenShift updates: 4.15.0-rc.7 -> 4.15.0-rc.8, 4.15.0-rc.7-multi -> 4.15.0-rc.8-multi
RHCOS updates:

/test edge-e2e-metal-assisted-4-15
/cc @osherdp @gamli75

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 openshift-eng/jira-lifecycle-plugin repository.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.28%. Comparing base (47cbc19) to head (5cc4ff3).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6019      +/-   ##
==========================================
- Coverage   68.29%   68.28%   -0.01%     
==========================================
  Files         237      237              
  Lines       35115    35115              
==========================================
- Hits        23981    23978       -3     
- Misses       9058     9061       +3     
  Partials     2076     2076              

see 3 files with indirect coverage changes

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: danmanor, osherdp

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[openshift-ci]

@danmanor: 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-agent-compact-ipv4	5cc4ff3	link	false	/test e2e-agent-compact-ipv4

Full PR test history. Your PR dashboard.

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[openshift-bot]

[ART PR BUILD NOTIFIER]

This PR has been included in build ose-agent-installer-api-server-container-v4.16.0-202402261010.p0.ga271884.assembly.stream.el8 for distgit ose-agent-installer-api-server.
All builds following this will include this PR.