chore: improve robustness of print_debug by handling missing system profiler keys

[chenrui333]

seeing some crash in CI, add some fallback for system profile checks

==> /opt/homebrew/Cellar/macmon/0.4.0/bin/macmon debug
thread 'main' panicked at src/debug.rs:26:74:
called `Option::unwrap()` on a `None` value
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

and now it would be

==> /opt/homebrew/Cellar/macmon/0.4.0/bin/macmon debug
Error: "Failed to get channels"
Chip: Apple M1 (Virtual) | Model: VirtualMac2,1 | OS: macOS 15.1.1 (24B91) | Unknown processors

--- AppleARMIODevice -----------------------------------------------------------

--- IOReport -------------------------------------------------------------------
/opt/homebrew/Library/Homebrew/ignorable.rb:27:in `block in raise'
Minitest::Assertion: Expected: 0
  Actual: 1

relates to Homebrew/homebrew-core#200767

[vladkens]

Hi, @chenrui333. Merged. Thank you!