ci: Harden workflows (#796) #257

Job	Run time
Detect relevant changed files	5s
Build/Publish arm64 Image	6m 21s
Build/Publish amd64 Image	7m 17s
Run cargo-udeps	2m 29s
Publish/Sign 0.0.0-dev Index	36s
Package/Publish 0.0.0-dev Helm Chart	42s
Run OpenShift Preflight Check for 0.0.0-dev-arm64	25s
Run OpenShift Preflight Check for 0.0.0-dev-amd64	23s
Failure Notification	-1s
Finished Build and Publish	3s
	18m 20s

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