Add (perf_data) upload to CLI report subcommand

[brainstorm]

As discussed offline, adding a CLI subcommand to submit firefox's profiler-server data, example viz here.

Work in progress, I was unsure about:

1. In which CLI subcommand to drop this functionality, I hope report is a good place? The other candidate was perf, happy to move it there if you think it's more appropriate?
2. Should I POST a report from the CLI and then have the bencher backend forward the POST of the received data to localhost:5252/compressed-data? OR have the CLI directly post it to the profile-server endpoint? I suspect that you want the former for several reasons... OTOH, the forwarding shuffles quite a few bytes on a couple of hops unless we send a 302 Redirect?

Anyway, let me know in advance if there's something off in my thinking or implementation so that we are on the same page, @epompeii.

Depends on #127

[brainstorm]

Thinking about point 2 above... you wanted to host the firefox profile-server at bencher.dev or were you planning use the public instance instead (https://api.profiler.firefox.com/)?... ahh, re-reading your email it seems that you want the latter, so that means having a direct POST of the bencher CLI to that endpoint? Easy!

[epompeii]

Thank you for taking the initiative on this, @brainstorm!

Yes, for the first pass lets just use the public instance (https://api.profiler.firefox.com). Long term, all this functionality should be built into the Bencher instead of adding an external dependency, so we'll just keep it simple for now.

I was thinking that this wouldn't be a sub-command. Rather it would be an optional argument to bencher run (which is also aliased to bencher report create). Something along the lines of --profile that would be an Option<PathBuf>.
In the bencher run code, this would read the profile from the specified path after all benchmarks have been run but before the report has been posted to the API backend.
Basically right here: https://github.com/bencherdev/bencher/blob/main/services/cli/src/bencher/sub/project/run/mod.rs#L146

To keep this from being hard blocked on #127 you can just do all the work here and store it as let _profile = ... for now. Once I get the metadata added to the report, I'll just drop it in there!