feat(coderd): insert provisioner daemons (#11207)

* Adds UpdateProvisionerDaemonLastSeenAt
* Adds heartbeat to provisioner daemons
* Inserts provisioner daemons to database upon start
* Ensures TagOwner is an empty string and not nil
* Adds COALESCE() in idx_provisioner_daemons_name_owner_key

coderd/database/dbauthz/setup_test.go

@@ -28,7 +28,7 @@ import (
 	"github.com/coder/coder/v2/coderd/util/slice"
 )
 
-var errMatchAny = errors.New("match any error")
+var errMatchAny = xerrors.New("match any error")
 
 var skipMethods = map[string]string{
 	"InTx":           "Not relevant",