fix: error messages don't stacktrace for 'recoverable' tracer errors

[drmorr0]

• I certify that this PR does not contain any code that has been generated with GitHub Copilot or any other AI-based code generation tool, in accordance with this project's policies.

Description

If there are pods that show up that are owned by something that sk-tracer doesn't have permissions to watch, previously it would stacktrace and make it look like the program had crashed. This should still be an error, but let's not make it stacktrace since sk-tracer can keep going with other events.

Testing done

• manual testing

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 10 lines in your changes missing coverage. Please review.

Project coverage is 70.49%. Comparing base (353dc49) to head (9440256).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
sk-store/src/watchers/mod.rs	0.00%	8 Missing ⚠️
sk-store/src/watchers/pod_watcher.rs	0.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #183      +/-   ##
==========================================
- Coverage   70.67%   70.49%   -0.19%     
==========================================
  Files          57       57              
  Lines        3267     3274       +7     
  Branches     3267     3274       +7     
==========================================
- Hits         2309     2308       -1     
- Misses        787      794       +7     
- Partials      171      172       +1     

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