fix: Use supplied datasource in qb defaults

The `QueryBuilder` and `SchemaBuilder` objects created for each migration
will now be configured with the supplied datasource, if any.

Author: wpdebruin

models/QBMigrationManager.cfc

@@ -136,9 +136,9 @@ component accessors="true" {
 
         var migration = wirebox.getInstance( migrationStruct.componentPath );
 
-        var schema = wirebox.getInstance( "SchemaBuilder@qb" ).setGrammar( wirebox.getInstance( defaultGrammar ) );
+        var schema = wirebox.getInstance( "SchemaBuilder@qb" ).setGrammar( wirebox.getInstance( defaultGrammar ) ).setDefaultOptions( { datasource: getDatasource() } );
 
-        var query = wirebox.getInstance( "QueryBuilder@qb" ).setGrammar( wirebox.getInstance( defaultGrammar ) );
+        var query = wirebox.getInstance( "QueryBuilder@qb" ).setGrammar( wirebox.getInstance( defaultGrammar ) ).setDefaultOptions( { datasource: getDatasource() } );
 
         preProcessHook( migrationStruct );