ci: bump pr-title-check action to v1.6.1

[janbuchar]

• bumps apify/actions/pr-title-check to v1.6.1
• the check was failing with Unable to resolve action crate-ci/typos@master, unable to find version master — upstream renamed their default branch to main and deleted master out from under everyone pinning it
• they've since restored master as a deprecation stub, so the check may look green again on its own; v1.6.1 pins the action to a release SHA so the next branch rename is someone else's problem — fix(pr-title-check): Pinned crate-ci/typos to commit SHA of v1.50.2 actions#45

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.25%. Comparing base (efc009d) to head (d8c9baf).
⚠️ Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1067   +/-   ##
=======================================
  Coverage   95.25%   95.25%           
=======================================
  Files          59       59           
  Lines        5547     5547           
=======================================
  Hits         5284     5284           
  Misses        263      263           

Flag	Coverage Δ
integration	92.08% <ø> (+0.03%)	⬆️
unit	87.41% <ø> (ø)

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