fix: fix base indent in template literals

[yeonjuan]

fixes #241

[codecov]

Codecov Report

Attention: Patch coverage is 93.02326% with 3 lines in your changes missing coverage. Please review.

Project coverage is 97.99%. Comparing base (4990e2d) to head (04ba31c).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
packages/eslint-plugin/lib/rules/indent.js	93.02%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #242      +/-   ##
==========================================
- Coverage   98.13%   97.99%   -0.15%     
==========================================
  Files          57       57              
  Lines        1556     1596      +40     
  Branches      418      428      +10     
==========================================
+ Hits         1527     1564      +37     
- Misses         29       32       +3     

Flag	Coverage Δ
unittest	97.99% <93.02%> (-0.15%)	⬇️

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Files with missing lines	Coverage Δ
packages/eslint-plugin/lib/rules/indent.js	97.82% <93.02%> (-2.18%)	⬇️