change slite driver settings

internal/db/srrdb.go

@@ -20,7 +20,7 @@ var srrdbSchema string
 // The driver name is read from db.ext.driver (sqlite, modernc.org/sqlite), so
 // the driver can be replaced in configuration without touching this file.
 func NewSrrdb() *sqlx.DB {
-	driver := viper.GetString("db.ext.driver")
+	driver := viper.GetString("srrdb.driver")
 	path := viper.GetString("srrdb.database")
 
 	db, err := sqlx.Connect(driver, path)