Change user and password HTTP authentication on the Web Server Component

[rp2019433]

Describe the problem you have/What new integration you would like
According to the Web Server Component documentation, it's possible to set a user and password to control who is allowed to access web interface.

https://esphome.io/components/web_server.html

# Example configuration entry
web_server:
  port: 80
  auth:
    username: !secret web_server_username
    password: !secret web_server_password

But for an already deployed device, if this password has to be changed, a new ESPHome code has to be built and uploaded to the device. What may not be convenient.

I was wondering if it's possible to create a feature "Change HTTP authentication user/password" on Web Server interface to allow a user to easily modify user/password from Web Server authentication.

Please describe your use case for this integration and alternatives you've tried:
An already deployed device, if this password has to be changed, a new ESPHome code has to be built and uploaded to the device. What nay be not convenient.
For a simple user/password change, it would be achieved via Web Server interface.