Fix Scaleway test

The upgraded client adds order=creation_date_desc to the query
parameters causing the tests to fail. Instead of checking the full URI,
just check that the path is correct.

Signed-off-by: Chris Marchbanks <csmarchbanks@gmail.com>

discovery/scaleway/instance_test.go

@@ -122,7 +122,7 @@ func mockScalewayInstance(w http.ResponseWriter, r *http.Request) {
 		http.Error(w, "bad token id", http.StatusUnauthorized)
 		return
 	}
-	if r.RequestURI != "/instance/v1/zones/fr-par-1/servers?page=1" {
+	if r.URL.Path != "/instance/v1/zones/fr-par-1/servers" {
 		http.Error(w, "bad url", http.StatusNotFound)
 		return
 	}