chore: fix typos in tests

[alexandear]

Fix grammar.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.79%. Comparing base (bc76a44) to head (d27fb44).
⚠️ Report is 2 commits behind head on v3.

Additional details and impacted files

@@           Coverage Diff           @@
##               v3    #1063   +/-   ##
=======================================
  Coverage   99.79%   99.79%           
=======================================
  Files          18       18           
  Lines        3397     3397           
=======================================
  Hits         3390     3390           
  Misses          4        4           
  Partials        3        3           

Flag	Coverage Δ
unittests	99.79% <ø> (ø)

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[jeevatkm]

@alexandear Thanks for correcting typos.