perf: optimize cli loading

[Codelax]

Base run

 ± time scw -h                
...
scw -h  0.70s user 0.05s system 172% cpu 0.434 total

Current

 ± time ./scw -h              
...
./scw -h  0.15s user 0.04s system 162% cpu 0.114 total

[codecov-commenter]

Codecov Report

Merging #2697 (782a538) into master (87eb1a0) will decrease coverage by 0.03%.
The diff coverage is 41.66%.

@@            Coverage Diff             @@
##           master    #2697      +/-   ##
==========================================
- Coverage   76.02%   75.98%   -0.04%     
==========================================
  Files         134      134              
  Lines       24749    24767      +18     
==========================================
+ Hits        18816    18820       +4     
- Misses       5303     5317      +14     
  Partials      630      630              

Impacted Files	Coverage Δ
internal/core/command.go	52.23% <33.33%> (-4.66%)	⬇️
internal/core/bootstrap.go	72.46% <100.00%> (ø)
internal/core/cobra_builder.go	86.66% <100.00%> (ø)

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[Codelax]

After 246cc4f

 ± time ./scw -h
...
./scw -h  0.05s user 0.03s system 119% cpu 0.064 total