fix: fix type errors

[yeonjuan]

fixes #297

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.61%. Comparing base (1370e7f) to head (4ecdb35).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #298   +/-   ##
=======================================
  Coverage   98.61%   98.61%           
=======================================
  Files          69       69           
  Lines        2025     2026    +1     
  Branches      560      558    -2     
=======================================
+ Hits         1997     1998    +1     
  Misses         28       28           

Flag	Coverage Δ
unittest	98.61% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
packages/eslint-plugin/lib/rules/attrs-newline.js	94.00% <100.00%> (-0.24%)	⬇️
...ackages/eslint-plugin/lib/rules/element-newline.js	98.07% <ø> (ø)
...es/eslint-plugin/lib/rules/id-naming-convention.js	97.36% <ø> (ø)
packages/eslint-plugin/lib/rules/indent/indent.js	99.43% <100.00%> (+<0.01%)	⬆️
packages/eslint-plugin/lib/rules/lowercase.js	100.00% <ø> (ø)
...kages/eslint-plugin/lib/rules/max-element-depth.js	100.00% <ø> (ø)
...kages/eslint-plugin/lib/rules/no-abstract-roles.js	100.00% <ø> (ø)
...ages/eslint-plugin/lib/rules/no-accesskey-attrs.js	100.00% <ø> (ø)
...ges/eslint-plugin/lib/rules/no-aria-hidden-body.js	100.00% <ø> (ø)
...ages/eslint-plugin/lib/rules/no-duplicate-attrs.js	100.00% <ø> (ø)
... and 41 more