Boilerplate simplification

[eapolinario]

Tracking issue

#5133

Why are the changes needed?

Having a single source of truth for boilerplate is going to streamline contributions and decrease duplication in dependabot alerts.

What changes were proposed in this pull request?

Move boilerplate to the monorepo and use it as the source of truth in each component. This includes removing the original copy of boilerplate from each component directory as well.

How was this patch tested?

Setup process

Screenshots

Check all the applicable boxes

• I updated the documentation accordingly.
• All new and existing tests passed.
• All commits are signed-off.

Related PRs

Docs link

[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 59.03%. Comparing base (78a690f) to head (8621850).
Report is 12 commits behind head on master.

Files	Patch %	Lines
...ytepropeller/pkg/controller/nodes/array/handler.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5134      +/-   ##
==========================================
+ Coverage   59.00%   59.03%   +0.03%     
==========================================
  Files         645      645              
  Lines       55672    55722      +50     
==========================================
+ Hits        32847    32897      +50     
  Misses      20230    20230              
  Partials     2595     2595              

Flag	Coverage Δ
unittests	59.03% <66.66%> (+0.03%)	⬆️

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