Adds a mechanism to delete CPA values for a given user (#30330)

* Adds a mechanism to delete CPA values for a given user

This requires improving the Property Value service to enable delete
all values for a given target, so a new method was created that allows
to delete filtering by targetType and targetID (required) and
optionally for a specific groupID in case the caller wants to affect
all values for a target (useful in case you remove a post for example
and want to delete all values pointing to that post regardless of the
feature they belong to) or only those that belong to a specific
feature.

* Fix property value tests

* Fix after merge and update method name

* Fix linter

---------

Co-authored-by: Miguel de la Cruz <miguel@ctrlz.es>
Co-authored-by: Mattermost Build <build@mattermost.com>

server/channels/store/store.go

@@ -1106,6 +1106,7 @@ type PropertyValueStore interface {
 	Upsert(values []*model.PropertyValue) ([]*model.PropertyValue, error)
 	Delete(groupID string, id string) error
 	DeleteForField(id string) error
+	DeleteForTarget(groupID string, targetType string, targetID string) error
 }
 
 type AccessControlPolicyStore interface {