Provisioning: refactor commit signature logic (#104055)

* WIP: Separate signature package

* Add some unit tests

* Test factory

* Finish unit test coverage signature package

* Fix register

* Add FIXME

* Add more coverage

* Add more coverage

* Fix migrate tests

* Fix unit tests

pkg/apimachinery/utils/meta.go

@@ -76,6 +76,8 @@ const AnnoKeyFullpathUIDs = "grafana.app/fullpathUIDs"
 const LabelKeyDeprecatedInternalID = "grafana.app/deprecatedInternalID"
 
 // Accessor functions for k8s objects
+//
+//go:generate mockery --name GrafanaMetaAccessor --structname MockGrafanaMetaAccessor --inpackage --filename meta_mock.go --with-expecter
 type GrafanaMetaAccessor interface {
 	metav1.Object