feat: add optional error skipping for getKeys()

[kricsleo]

resolves #208

try: true or throw: false - which is better? 🤔

[codecov]

Codecov Report

Attention: Patch coverage is 86.11111% with 5 lines in your changes missing coverage. Please review.

Project coverage is 60.13%. Comparing base (70310f9) to head (4021926).
Report is 11 commits behind head on main.

Files with missing lines	Patch %	Lines
src/utils.ts	50.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #617      +/-   ##
==========================================
+ Coverage   59.99%   60.13%   +0.13%     
==========================================
  Files          42       42              
  Lines        3657     3760     +103     
  Branches      590      611      +21     
==========================================
+ Hits         2194     2261      +67     
- Misses       1460     1496      +36     
  Partials        3        3              

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