fix: logout specified credential config file if provided (oras-projec…

…t#626)

Resolves: oras-project#625

Signed-off-by: Billy Zha <jinzha1@microsoft.com>

cmd/oras/logout.go

@@ -55,7 +55,7 @@ func runLogout(opts logoutOptions) error {
 		logrus.SetLevel(logrus.DebugLevel)
 	}
 
-	store, err := credential.NewStore()
+	store, err := credential.NewStore(opts.configs...)
 	if err != nil {
 		return err
 	}