chore: fix typos

[itchyny]

This PR fixes some trivial typos.

[codecov]

Codecov Report

Attention: Patch coverage is 70.00000% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 57.38%. Comparing base (2c8095a) to head (52b2e72).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1033   +/-   ##
=======================================
  Coverage   57.38%   57.38%           
=======================================
  Files          30       30           
  Lines        2971     2971           
  Branches      203      203           
=======================================
  Hits         1705     1705           
  Misses       1263     1263           
  Partials        3        3           

Files	Coverage Δ
src/cli.ts	35.97% <100.00%> (ø)
src/soy.ts	74.74% <100.00%> (ø)
src/batch.ts	0.00% <0.00%> (ø)
src/dependency-parser-worker.ts	0.00% <0.00%> (ø)
src/duckconfig.ts	69.84% <83.33%> (ø)