RHOAIENG-15748: chore(release): set the main tag to main, so we need not update it with digest updater from now on

[jiridanek]

https://issues.redhat.com/browse/RHOAIENG-15748

Follow-up to

• https://github.com/red-hat-data-services/rhods-devops-infra/pull/131

Description

https://docs.google.com/document/d/1R1zPFKI4-HQY9SeJYa2erSnzr5YNdEU497CdOgni7AY/edit?tab=t.0#heading=h.p8a8iq2tou22

How Has This Been Tested?

Images with main tag are present and can be used

podman pull --platform=linux/amd64 quay.io/opendatahub/kubeflow-notebook-controller:main
Trying to pull quay.io/opendatahub/kubeflow-notebook-controller:main...
Getting image source signatures
Copying blob sha256:bb4c96ca6d403d756b0d1fa420b6ade5ab46035a46451db44f1abff5b200b345
Copying blob sha256:e0348fdb2685077d22116d294a90a253709aba78815882a57fcc536b22dcae2f
Copying config sha256:dfab4f088ac5d5587543216d61a0969a63a0c0f148c8a9782b2be221eaf28f6b
Writing manifest to image destination
dfab4f088ac5d5587543216d61a0969a63a0c0f148c8a9782b2be221eaf28f6b

podman pull --platform=linux/amd64 quay.io/opendatahub/odh-notebook-controller:main
Trying to pull quay.io/opendatahub/odh-notebook-controller:main...
Getting image source signatures
Copying blob sha256:84f1c1f659dd19766fea787ec33bcf66ff5ad1b78be4f6f7eaf73276ee0466e3
Copying blob sha256:e0348fdb2685077d22116d294a90a253709aba78815882a57fcc536b22dcae2f
Copying config sha256:d7ca01df108e912016aa9ce24d9013fd01a1ab323e7674939d3c2451a6cea92a
Writing manifest to image destination
d7ca01df108e912016aa9ce24d9013fd01a1ab323e7674939d3c2451a6cea92a

Merge criteria:

• The commits are squashed in a cohesive manner and have meaningful messages.
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has manually tested the changes and verified that the changes work

[jstourac]

/lgtm

[atheo89]

/lgtm

[jiridanek]

• [Fix] update bash scripts for E2E tests run to propagate failures #433

/override ci/prow/odh-notebook-controller-e2e

[openshift-ci]

@jiridanek: Overrode contexts on behalf of jiridanek: ci/prow/odh-notebook-controller-e2e

In response to this:

• [Fix] update bash scripts for E2E tests run to propagate failures #433

/override ci/prow/odh-notebook-controller-e2e

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