chore(style): use gofumpt to fmt go code (#967)

idp/lark.go

@@ -45,11 +45,11 @@ func (idp *LarkIdProvider) SetHttpClient(client *http.Client) {
 
 // getConfig return a point of Config, which describes a typical 3-legged OAuth2 flow
 func (idp *LarkIdProvider) getConfig(clientId string, clientSecret string, redirectUrl string) *oauth2.Config {
-	var endpoint = oauth2.Endpoint{
+	endpoint := oauth2.Endpoint{
 		TokenURL: "https://open.feishu.cn/open-apis/auth/v3/tenant_access_token/internal",
 	}
 
-	var config = &oauth2.Config{
+	config := &oauth2.Config{
 		Scopes:       []string{},
 		Endpoint:     endpoint,
 		ClientID:     clientId,