feat: check spellings of words for typos

[zimeg]

Summary

This PR checks for typos or mispellings within a codebase to fix #99.

Notes

• https://github.com/crate-ci/typos/blob/master/docs/github-action.md

Requirements

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.66%. Comparing base (e383720) to head (be9558e).
⚠️ Report is 7 commits behind head on zimeg-feat-gha-checks.

Additional details and impacted files

@@                    Coverage Diff                    @@
##           zimeg-feat-gha-checks     #105      +/-   ##
=========================================================
- Coverage                  94.77%   94.66%   -0.12%     
=========================================================
  Files                          6        6              
  Lines                        383      375       -8     
=========================================================
- Hits                         363      355       -8     
  Misses                        20       20              

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[zimeg]

📣 https://github.com/slackapi/slack-health-score/actions/runs/16015365267/job/45180838432?pr=105#step:5:3221

Cool! This seems to work!

Warning: "commment" should be "comment".
error: `commment` should be `comment`
  --> ./test/helpers/helpers-test.js:108:13
    |
108 |             commmentType: null,
    |             ^^^^^^^^
    |
Error: Process completed with exit code 2.

[zimeg]

📝 To use a custom .typos.toml in a release we might have to switch to teunmooij/github-versioned-release 🐙

[zimeg]

📚 A thought crossed mind about repo specific configs-

[zimeg]

📣 note: I'm concerned that using this file across multiple projects could block downstream changes if unexpected words appear that we should exclude.

thought: Changing this to be a nonblocking step or using a .typos.toml file from the project if found are perhaps ideas. I'm kind of wanting to start with this though...

[zimeg]

📝 This should be non-blocking since we use a lot of magic words 🪄