Add legacy endpoints to registry detection

[HeavyWombat]

Changes

Add the respective legacy/old registry endpoints to the list of endpoints of the registry detection to allow users to potentially still use the old registry endpoints.

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• Includes tests if functionality changed/was added
• Includes docs if changes are user-facing
• Set a kind label on this PR
• Release notes block has been filled in, or marked NONE

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Release Notes

The bundle prune option now also supports the legacy registry endpoints for both DockerHub and IBM Container Registry in its registry detection routine.

[SaschaSchwarze0]

Please check

build/pkg/image/delete.go

Line 215 in dce7c32

if strings.Contains(registry, "stg.icr.io") {

. I think you need to add the stage bluemix endpoint there as well.

[HeavyWombat]

Please check

build/pkg/image/delete.go

Line 215 in dce7c32

if strings.Contains(registry, "stg.icr.io") {

. I think you need to add the stage bluemix endpoint there as well.

Thanks!

[SaschaSchwarze0]

/approve
/lgtm

[openshift-ci]

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