Make profiler-cli work in sandboxed environments

[canova]

There were two things that prevented us from having a working cli in the sandboxed environments:

1. HTTP(S) proxy needs to be used
   • All network request must go through some proxy, so the sandboxed environment can choose to allow or block the requests per domain. If it doesn't use this proxy, the requests are usually blocked automatically without a way to allow. It seemed a bit sketchy to me at first but then I realized that this is the default behavior on many places like curl, python, go, and node is considering enabling this by default.
2. Signaling a process is not allowed
   • process.kill(pid, 0); isn't allowed in sandboxed environments, so this can't be used to check if the process is still alive. Instead, I converted that isProcessRunning to isDaemonReachable and used the existing sockets to check if the daemon is still listening that socket (for example with ECONNREFUSED).

Also please see the individual commit messages.

I tested both on macOS and Linux, and they seem to work (with some additional config depending on what you use for sandboxing)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.82%. Comparing base (5783a76) to head (fede2a3).
⚠️ Report is 20 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6003   +/-   ##
=======================================
  Coverage   83.82%   83.82%           
=======================================
  Files         328      328           
  Lines       34254    34254           
  Branches     9572     9479   -93     
=======================================
  Hits        28712    28712           
  Misses       5114     5114           
  Partials      428      428           

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