sqldb: use the new schema

We put this new schema update into the main line and change the
versions of the schema updates which are currently only available
in dev builds. The schemas need to be chronological therefore we
also need to rename the file numbers.

sqldb/migrations_dev.go

@@ -4,14 +4,14 @@ package sqldb
 
 var migrationAdditions = []MigrationConfig{
 	{
-		Name:          "000007_graph",
-		Version:       8,
-		SchemaVersion: 7,
+		Name:          "000008_graph",
+		Version:       9,
+		SchemaVersion: 8,
 	},
 	{
 		Name:          "kv_graph_migration",
-		Version:       9,
-		SchemaVersion: 7,
+		Version:       10,
+		SchemaVersion: 8,
 		// A migration function may be attached to this
 		// migration to migrate KV graph to the native SQL
 		// schema. This is optional and can be disabled by the