fix: change error type from ErrUnauthorizedClient to ErrUnsupportedGrantType for unsupported grant types#290

yangsijie666 wants to merge 1 commit intogo-oauth2:mastergo-oauth2/oauth2:masterfrom

yangsijie666:fix/error-type-correctionyangsijie666/oauth2:fix/error-type-correctionCopy head branch name to clipboard