chore: use new testing-tools image (#91) #52

Job	Run time
Detect relevant changed files	5s
Run cargo-udeps	2m 0s
Build/Publish amd64 Image	6m 6s
Build/Publish arm64 Image	5m 13s
Publish/Sign 0.0.0-dev Index	27s
Package/Publish 0.0.0-dev Helm Chart	25s
Run OpenShift Preflight Check for 0.0.0-dev-amd64	18s
Run OpenShift Preflight Check for 0.0.0-dev-arm64	17s
Failure Notification	0s
Finished Build and Publish	3s
	14m 54s

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