Impossible to profile binary with exit status 1

[beeb]

My process exits with status 1, but I want to be able to profile its execution. codspeed exec fails in this case with:

Error: failed to execute the benchmark process: exit status: 1

It would be great to add a flag to allow non-zero exit codes, just like hyperfine does for example.

[GuillaumeLagrange]

That would definitely be something we should do, thanks for the feedback!

[yaowubarbara]

I'd be happy to pick this up. Two quick design questions before I send a PR:

1. Flag name — following hyperfine's convention cited above, my default would be -i / --ignore-failure. Any
   preference for a different naming?

2. Scope — the cmd_status != 0 bail lives in src/executor/valgrind/measure.rs, and there's a symmetric
   !status.success() check in src/executor/wall_time/executor.rs. Would you like the flag to apply to both executors,
   or keep it scoped to codspeed exec only?

Happy to open a draft PR first if you'd prefer to review the shape before I add tests.

[yaowubarbara]

I've opened #286 as a draft to show the shape, happy to rename the flag or narrow the scope based on your preference before marking it ready.