refactor: extract dereference/validate pipeline from reconcile_airflow #431

Job	Run time
Detect relevant changed files	8s
Build/Publish arm64 Image	5m 37s
Run cargo-udeps	2m 7s
Build/Publish amd64 Image	7m 0s
Publish/Sign 0.0.0-pr795 Index	27s
Package/Publish 0.0.0-pr795 Helm Chart	30s
Run OpenShift Preflight Check for 0.0.0-pr795-arm64	16s
Run OpenShift Preflight Check for 0.0.0-pr795-amd64	15s
Failure Notification	0s
Finished Build and Publish	3s
	16m 23s

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