fix: revert version to 5.0.1 and update @flagship.io/react-sdk depend…

[Heihokon]

refactor: enhance Flagship hooks and provider with type checks for visitor methods
feat: add VisitorAugmented type for improved visitor event handling

fix: update GitHub Actions workflow to use Node.js 24.x and setup-node@v4

fix: update documentation link and increment version to 5.0.3

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.42%. Comparing base (2e1ae59) to head (55b918a).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #103   +/-   ##
=======================================
  Coverage   99.42%   99.42%           
=======================================
  Files           7        7           
  Lines         174      174           
  Branches       34       34           
=======================================
  Hits          173      173           
  Misses          1        1           

Flag	Coverage Δ
unittests	99.42% <100.00%> (ø)

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