Add changelog for COOAssembler

[KnutAM]

No description provided.

[codecov]

Codecov Report

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

Project coverage is 93.69%. Comparing base (4b8c233) to head (32ca983).
Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
src/deprecations.jl	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1080      +/-   ##
==========================================
- Coverage   93.71%   93.69%   -0.02%     
==========================================
  Files          39       39              
  Lines        6042     6045       +3     
==========================================
+ Hits         5662     5664       +2     
- Misses        380      381       +1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.