Publish version for Apple Silicon chip

Hi team,

I set up Cloudflare Access for our SSH server and currently no official binary for Apple Silicon chip. After installing from homebrew:

```
❯ brew install cloudflare/cloudflare/cloudflared
❯ cloudflared
zsh: bad CPU type in executable: cloudflared
```

I tried to clone the repo and run `make cloudflared`, the binary is working with Mac M1:
```
❯ arch
arm64
❯ make cloudflared
GOOS=darwin GOARCH=arm64 go build -v -mod=vendor -ldflags='-X "main.Version=2021.12.1-3-g70e675f4" -X "main.BuildTime=2021-12-20-2346 UTC" ' github.com/cloudflare/cloudflared/cmd/cloudflared
❯ ./cloudflared version
cloudflared version 2021.12.1-3-g70e675f4 (built 2021-12-20-2346 UTC)
```

I tried to make a PR but the current Team City setup for MacOS is hard for outside people contributing.

Thanks,