limactl start fails to complete to ready if host's proxy is inaccessible

If have a proxy set to 127.0.0.1 on my host, which causes `limactl start` to fail as it takes that proxy address and of course cannot access it to download packages inside the virtual machine.

Perhaps lima should ignore or rewrite a 127.0.0.1 proxy host? It seems like a special circumstance...

I discovered the issue by reviewing `~/.lima/default/serial.log` and seeing the failures to communicate with 127.0.0.1:8888, the address and port of my proxy. The issue wasn't visible from `limactl start`... it just failed to be ready.