format with gofumpt (#18184)

* gofumpt -w -l .

* gofumpt -w -l -extra .

* Add linter

* manual fix

* change make fmt

services/auth/source/oauth2/providers_simple.go

@@ -107,5 +107,4 @@ func init() {
 			return microsoftonline.New(clientID, secret, callbackURL, scopes...)
 		},
 	))
-
 }