chore: add 2.6.6 and remove 2.6.3 #230

Job	Run time
Detect relevant changed files	5s
Build/Publish arm64 Image	5m 19s
Run cargo-udeps	2m 4s
Build/Publish amd64 Image	6m 59s
Package/Publish 0.0.0-pr767 Helm Chart	30s
Publish/Sign 0.0.0-pr767 Index	25s
Run OpenShift Preflight Check for 0.0.0-pr767-amd64	18s
Run OpenShift Preflight Check for 0.0.0-pr767-arm64	15s
Failure Notification	0s
Finished Build and Publish	3s
	15m 58s

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