Release v0.5.1

This is a patch release bump that fixes #806 .

Release v0.5.0 lacks of RBAC permissions required by the OwnerReferencesPermissionEnforcement admission controller, which is enabled by default in OpenShift clusters. This was causing reconcile errors on the Shipwright controllers.

Note: We recommend OpenShift users to bump directly to this Release v0.5.1, instead of the v0.5.0.

Fixes

#807 by adambkaplan: Add RBAC permissions to let the build controller set owner references if a cluster has the OwnerReferencesPermissionEnforcement admission controller enabled.

Misc

#804 by qu1queee: Enhance CI with automated README updates