TieredMenu: MenuItem className is not passed to DOM in unstyled mode

[sweco-dkhmaa]

Describe the bug

The className Property of MenuItem is not passed to TieredMenu DOM, when running PrimeReact in unstyled mode.

Reproducer

https://codesandbox.io/p/sandbox/qqzps9

System Information

System:
    OS: Linux 6.1 Debian GNU/Linux 12 (bookworm) 12 (bookworm)
    CPU: (2) x64 AMD EPYC
    Memory: 2.47 GB / 4.01 GB
    Container: Yes
    Shell: Unknown
  Binaries:
    Node: 20.9.0 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 9.8.1 - /usr/local/bin/npm
    pnpm: 8.10.2 - /usr/local/share/npm-global/bin/pnpm
  npmPackages:
    primereact: 10.9.7 => 10.9.7 
    react: 19.2.0 => 19.2.0

Steps to reproduce the behavior

• Wrap a TieredMenu component inside a PrimeReactProvider with unstyled set to true.
• Create a MenuItem with the className property set
• Give the MenuItem to the TieredMenu
• Observe the className value is not passed to the generated MenuItem element

Expected behavior

Would expect the className property to be passed to the generated element, even in unstyled mode.