Use rhel-9-golang-1.20 as a builder image

[andfasano]

This patch bumps the agent-based installer OCP images in order to use rhel-9-golang-1.20 as a builder image

[andfasano]

/hold

Requires openshift/release#41331

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@79d47aa). Click here to learn what that means.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff            @@
##             master     #687   +/-   ##
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  Coverage          ?   54.68%           
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  Files             ?       14           
  Lines             ?     2911           
  Branches          ?        0           
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  Hits              ?     1592           
  Misses            ?     1177           
  Partials          ?      142           

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: andfasano, carbonin

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[openshift-ci]

@andfasano: 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/edge-e2e-ai-operator-ztp	b47d0b8	link	true	/test edge-e2e-ai-operator-ztp
ci/prow/e2e-agent-compact-ipv4	b47d0b8	link	true	/test e2e-agent-compact-ipv4

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[andfasano]

Will be addressed in https://issues.redhat.com/browse/CORS-2750