Update/delete vendor files

Refreshed / updated vendor dependencies

Tested with "make".

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

gateway/vendor/github.com/openfaas/faas-provider/auth/credentials.go

@@ -17,7 +17,7 @@ type BasicAuthCredentials struct {
 }
 
 type ReadBasicAuth interface {
-	Read() (error, *BasicAuthCredentials)
+	Read() (*BasicAuthCredentials, error)
 }
 
 type ReadBasicAuthFromDisk struct {

gateway/vendor/github.com/openfaas/faas-provider/types/model.go

@@ -93,6 +93,7 @@ type FunctionStatus struct {
 
 // Secret for underlying orchestrator
 type Secret struct {
-	Name  string `json:"name"`
-	Value string `json:"value,omitempty"`
+	Name      string `json:"name"`
+	Namespace string `json:"namespace,omitempty"`
+	Value     string `json:"value,omitempty"`
 }