chore: exclude nodemon and lit-ntml build when installing dependencies

[userquin]

motss/lit-ntml#81 (comment)

closes #222

[codecov]

Codecov Report

Attention: 31 lines in your changes are missing coverage. Please review.

Comparison is base (3582b2c) 100.00% compared to head (bccfe79) 92.82%.
Report is 8 commits behind head on main.

Files	Patch %	Lines
src/date-picker-input/date-picker-input.ts	82.50%	7 Missing and 7 partials ⚠️
src/year-grid/year-grid.ts	57.14%	9 Missing and 3 partials ⚠️
src/month-calendar/month-calendar.ts	90.00%	1 Missing and 3 partials ⚠️
src/date-picker/date-picker.ts	98.78%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##              main     #224      +/-   ##
===========================================
- Coverage   100.00%   92.82%   -7.18%     
===========================================
  Files           58       58              
  Lines         3305      711    -2594     
  Branches       238      155      -83     
===========================================
- Hits          3305      660    -2645     
- Misses           0       32      +32     
- Partials         0       19      +19     

Flag	Coverage Δ
unit_tests	92.82% <88.92%> (-7.18%)	⬇️
unit_tests_helpers	?

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