fix lustre instance sweeper (#14690) (#10447)

[upstream:6e585643a043818709efa5b8e292846939e26f95]

Signed-off-by: Modular Magician <[email protected]>

Author: modular-magician

google-beta/services/lustre/resource_lustre_instance_sweeper.go

@@ -57,12 +57,10 @@ func listAndActionLustreInstance(action sweeper.ResourceAction) error {
 	var configs []*tpgresource.ResourceDataMock
 	t := &testing.T{}
 	billingId := envvar.GetTestBillingAccountFromEnv(t)
-	// Default single config
-	intermediateValues := []map[string]string{
-		{
-			"region": "us-central1",
-		},
-	}
+	// Build URL substitution maps individually to ensure proper formatting
+	intermediateValues := make([]map[string]string, 1)
+	intermediateValues[0] = map[string]string{}
+	intermediateValues[0]["location"] = "us-central1-a"
 
 	// Create configs from intermediate values
 	for _, values := range intermediateValues {