debugger: move ProbeInspectorSession and helpers to separate files

[joyeecheung]

This addresses the review left by @legendecas in #62713 to move the helpers to a new file. We postponed it due to failing a test triggered by a pre-existing unrelated bug, which has now been skipped in #62808 so this PR finishes that TODO.

[joyeecheung]

cc @nodejs/inspector @hybrist

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/72998/

[codecov]

Codecov Report

❌ Patch coverage is 80.75676% with 178 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.65%. Comparing base (27c7f4d) to head (a1b7af9).
⚠️ Report is 14 commits behind head on main.

Files with missing lines	Patch %	Lines
lib/internal/debugger/inspect_probe.js	77.83%	169 Missing and 5 partials ⚠️
lib/internal/debugger/inspect_helpers.js	96.96%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #63013      +/-   ##
==========================================
- Coverage   89.67%   89.65%   -0.03%     
==========================================
  Files         707      710       +3     
  Lines      219509   220444     +935     
  Branches    42093    42274     +181     
==========================================
+ Hits       196851   197633     +782     
- Misses      14551    14674     +123     
- Partials     8107     8137      +30     

Files with missing lines	Coverage Δ
lib/internal/debugger/inspect.js	92.66% <100.00%> (+6.67%)	⬆️
lib/internal/debugger/inspect_helpers.js	96.96% <96.96%> (ø)
lib/internal/debugger/inspect_probe.js	77.83% <77.83%> (ø)

... and 54 files with indirect coverage changes

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[Aditi-1400]

LGTM, thanks!