ROX-26151: Pin operator image in operator-bundle (3rd)

[mclasmeier]

Description

This PR changes the existing pipeline for the operator-bundle so that instead of injecting the operator-image tag into the CSV file we resolve this tag to an image digest and then inject that into the CSV.

Note: This is a simplified PR: there are no checks about the actual availability of the "replaced" version (think: "previous") of the operator.

User-facing documentation

• [x] CHANGELOG update is not needed
• [x] documentation PR is not needed

Testing and quality

• [ ] the change is production ready: the change is GA or otherwise the functionality is gated by a feature flag
• [x] CI results are inspected

Automated testing

I have not added any new tests.

How I validated my change

[openshift-ci[bot]]

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

[rhacs-bot]

Images are ready for the commit at 3842086.

To use with deploy scripts, first export MAIN_IMAGE_TAG=4.6.x-565-g384208658a.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 48.13%. Comparing base (9d0d5f5) to head (7d3a32d). Report is 8 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #12797      +/-   ##
==========================================
- Coverage   48.14%   48.13%   -0.01%     
==========================================
  Files        2438     2438              
  Lines      174848   174915      +67     
==========================================
+ Hits        84184    84202      +18     
- Misses      83869    83916      +47     
- Partials     6795     6797       +2     

Flag	Coverage Δ
go-unit-tests	48.13% <ø> (-0.01%)	:arrow_down:

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[mclasmeier]

FYI, @porridge, pushed two commits.

[openshift-ci[bot]]

@mclasmeier: 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/gke-sensor-integration-tests	384208658a9d263c5b3f44cc9dfcba55bb00a89d	link	false	/test gke-sensor-integration-tests

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