OCPBUGS-71234: Permit z-stream upgrades when custom featureGates are enabled#6083

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copejon wants to merge 3 commits intoopenshift:mainfrom

copejon:ocpbugs-71234

Commits on Jan 14, 2026

align featuregate upgrade blocking behavior by allowing only z-stream upgrades
copejon
committed

Commits on Jan 16, 2026

revert logged instructions; tests now use minor version 21 and up for clarity
copejon
committed

Commits on Jan 20, 2026

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copejon
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agullon
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