feat(cli): add test for readSocketPath

[jsjoeio]

This PR adds tests for readSocketPath.

TODOs

• extract readSocketPath and export
• fix TS error
• write test for readSocketPath

Fixes N/A

[codecov]

Codecov Report

Merging #4275 (e107a15) into main (6eda7ae) will decrease coverage by 4.30%.
The diff coverage is 57.14%.

❗ Current head e107a15 differs from pull request most recent head 87370ed. Consider uploading reports for the commit 87370ed to get more accurate results

@@            Coverage Diff             @@
##             main    #4275      +/-   ##
==========================================
- Coverage   65.32%   61.01%   -4.31%     
==========================================
  Files          36       36              
  Lines        1883     1883              
  Branches      380      380              
==========================================
- Hits         1230     1149      -81     
- Misses        555      624      +69     
- Partials       98      110      +12     

Impacted Files	Coverage Δ
src/node/cli.ts	50.20% <57.14%> (-31.28%)	⬇️
src/node/util.ts	80.71% <0.00%> (-2.54%)	⬇️

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[github-actions]

✨ Coder.com for PR #4275 deployed! It will be updated on every commit.

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• Commit: e107a15
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