feat: improve polaris relation and add copyright for polaris example

[houseme]

No description provided.

[codecov-commenter]

Codecov Report

Patch coverage: 100.00% and project coverage change: -0.01 ⚠️

Comparison is base (d9a7ee3) 78.85% compared to head (6d85b82) 78.84%.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2607      +/-   ##
==========================================
- Coverage   78.85%   78.84%   -0.01%     
==========================================
  Files         631      631              
  Lines       51705    51705              
==========================================
- Hits        40770    40767       -3     
- Misses       8917     8921       +4     
+ Partials     2018     2017       -1     

Flag	Coverage Δ
go-1.15-386	78.87% <100.00%> (-0.01%)	⬇️
go-1.15-amd64	78.87% <100.00%> (+<0.01%)	⬆️
go-1.16-386	78.87% <100.00%> (+<0.01%)	⬆️
go-1.16-amd64	78.86% <100.00%> (-0.02%)	⬇️
go-1.17-386	78.88% <100.00%> (+0.01%)	⬆️
go-1.17-amd64	78.87% <100.00%> (+0.01%)	⬆️
go-1.18-386	78.79% <100.00%> (-0.01%)	⬇️
go-1.18-amd64	78.81% <100.00%> (+0.03%)	⬆️

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Impacted Files	Coverage Δ
contrib/registry/polaris/polaris.go	60.00% <100.00%> (ø)

... and 2 files with indirect coverage changes

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