change migrate name to avoid conflict (maybe)

factory.go

@@ -92,7 +92,7 @@ func NewSqliteSDKTraceExporterWithDB(db *sql.DB) (sdktrace.SpanExporter, error)
 }
 
 func doMigrate(db *sql.DB) error {
-	d, err := iofs.New(migrations, "migrations")
+	d, err := iofs.New(migrations, "sqliteexporter")
 	if err != nil {
 		return fmt.Errorf("failed to open iofs migration source: %w", err)
 	}