test: Bump OPA to 1.12.3 (#731) #57

Job	Run time
Detect relevant changed files	6s
Build/Publish arm64 Image	5m 15s
Run cargo-udeps	2m 7s
Build/Publish amd64 Image	6m 28s
Publish/Sign 0.0.0-dev Index	24s
Package/Publish 0.0.0-dev Helm Chart	32s
Run OpenShift Preflight Check for 0.0.0-dev-arm64	17s
Run OpenShift Preflight Check for 0.0.0-dev-amd64	18s
Failure Notification	-1s
Finished Build and Publish	2s
	15m 28s

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