Use compression when downloading coder binary from server

[mafredri]

Easy win (52s vs 23s):

wget https://dev.coder.com/bin/coder-darwin-arm64  0.24s user 1.27s system 2% cpu 52.364 total

vs

wget --compression=gzip https://dev.coder.com/bin/coder-darwin-arm64  0.57s user 0.62s system 5% cpu 23.024 total

I believe server does support zstd as well, if that can be utilized in the extension.

I timed the extensions download speed and it was around 50s so I assume it's uncompressed, did not verify in code.