go.mod: add temporary replace to local sqldb pkg

go.mod

@@ -199,6 +199,10 @@ require (
 	sigs.k8s.io/yaml v1.2.0 // indirect
 )
 
+// TODO(elle): remove once all the schemas and queries for the graph
+// store have been included in a tagged sqldb version.
+replace github.com/lightningnetwork/lnd/sqldb => ./sqldb
+
 // This replace is for https://github.com/advisories/GHSA-25xm-hr59-7c27
 replace github.com/ulikunitz/xz => github.com/ulikunitz/xz v0.5.11