TimePicker does not accept popupClassName when replacing Moment.js with day.js

[jamealg-jv]

Reproduction link

Steps to reproduce

1. Follow the steps on the Replace Moment.js documentation to replace with day.js: https://ant.design/docs/react/replace-moment
2. Set popupClassName prop with a defined class
3. Run and open the popup

What is expected?

The className is applied to the popup container

What is actually happening?

The className is not applied to the popup container

Environment	Info
antd	4.20.4
React	17
System	macOS Catalina 10.15.7
Browser	Chrome 98.0.4758.102

[MadCcc]

Use dropdownClassName instead. popupClassName is only alias in TimePicker of antd, and is not work in Picker generated with generatePicker.
Maybe we should deprecate popupClassName and enable dropdownClassName for TimePicker to ensure consistency with DatePicker.

[MadCcc]

Trace in #34087