Adding custom ENV variables before limactl start

[dioxine]

Hello. It would be very nice to have ability to customise starting of limactl with additional ENV arguments. For example.

QEMU_SYSTEM_X86_64="qemu-system-x86_64 -cpu max -machine q35" limactl start

I need this line because i have no ability to use hypervizor framework in MacOS, cause of cpu type. Editing lima.yml config does nothing.