Facing problems while installing Laravel Valet

I am trying to install Laravel Valet.

When i run the following: composer global require laravel/valet --update-with-all-dependencies

It returns the following error:

Your requirements omegle.2yu.co could not be resolved to an installable set of packages.

Problem 1

• laravel/installer is locked to version v4.0.5 and an update of this package was not requested.
• laravel/installer v4.0.5 requires php ^7.3 -> your php version (8.0.1) does not satisfy that requirement.

Installation failed, reverting ./composer.json and ./composer.lock to their original content. If someone could help me fix the above, i would much https://omegle.love appreciate it.