OSD-26790 continue upgrade despite notif failure

[Tafhim]

What type of PR is this?

bug

What this PR does / why we need it?

Fixes MUO upgrade completion blocked by SL failure.

Which Jira/Github issue(s) this PR fixes?

OSD-26790

Special notes for your reviewer:

Pre-checks (if applicable):

• Tested latest changes against a cluster
• Included documentation changes with PR

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: Tafhim
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[openshift-ci]

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.

Project coverage is 54.22%. Comparing base (cb3ae47) to head (af6af79).

Files with missing lines	Patch %	Lines
pkg/upgraders/controlplanestep.go	66.66%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #493   +/-   ##
=======================================
  Coverage   54.22%   54.22%           
=======================================
  Files         122      122           
  Lines        5953     5953           
=======================================
  Hits         3228     3228           
  Misses       2523     2523           
  Partials      202      202           

Files with missing lines	Coverage Δ
pkg/upgraders/controlplanestep.go	95.00% <66.66%> (ø)

[ravitri]

/hold