InputTextarea: Duplicated class in DOM using className

[samy-mssi]

Describe the bug

On unstyled mode, adding className prop to <InputTextarea /> will add it twice. (see stackblitz).

Reproducer

https://stackblitz.com/edit/vitejs-vite-ra4kd6?file=src%2FApp.tsx

System Information

System:
    OS: Linux 6.5 Ubuntu 24.04.1 LTS 24.04.1 LTS (Noble Numbat)
    CPU: (24) x64 12th Gen Intel(R) Core(TM) i7-12850HX
    Memory: 12.74 GB / 31.01 GB
    Container: Yes
    Shell: 5.2.21 - /bin/bash
  Binaries:
    Node: 20.17.0 - ~/.nvm/versions/node/v20.17.0/bin/node
    Yarn: 1.22.22 - ~/.nvm/versions/node/v20.17.0/bin/yarn
    npm: 10.8.2 - ~/.nvm/versions/node/v20.17.0/bin/npm
  Browsers:
    Chrome: 128.0.6613.137
  npmPackages:
    react: ^18.2.0 => 18.2.0

Steps to reproduce the behavior

1. Setup unstyled mode using PrimeReactProvider
2. Add <InputTextarea className="my-classname" />
3. run and check the DOM

Expected behavior

Expect "my-classname" to be added once