feat: switch to gml.xsd for geo-coordinates

1.1/lido-v1.1-draft.xsd

@@ -106,7 +106,7 @@
 	<xs:import namespace="http://www.w3.org/XML/1998/namespace"
 		schemaLocation="http://www.w3.org/2001/03/xml.xsd"/>
 	<xs:import namespace="http://www.opengis.net/gml"
-		schemaLocation="minified-gml.xsd"/>
+		schemaLocation="http://schemas.opengis.net/gml/3.1.1/base/gml.xsd"/>
 	<xs:import namespace="http://www.lido-schema.org/quality-assurance"
 		schemaLocation="lido-qa.xsd"/>