Aggregate fetchrequest does not apply predicate

[roanutil]

• Set predicate for aggregate requests on fetchrequest
• Add test cases to check that aggregate functions use their provided predicate

[codecov-commenter]

Codecov Report

Patch coverage: 95.34% and project coverage change: +0.27 🎉

Comparison is base (ef88b63) 85.17% compared to head (600dba8) 85.45%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #16      +/-   ##
==========================================
+ Coverage   85.17%   85.45%   +0.27%     
==========================================
  Files          20       20              
  Lines        1545     1588      +43     
==========================================
+ Hits         1316     1357      +41     
- Misses        229      231       +2     

Impacted Files	Coverage Δ
...DataRepositoryTests/AggregateRepositoryTests.swift	95.54% <95.23%> (-0.12%)	⬇️
...eDataRepository/CoreDataRepository+Aggregate.swift	91.07% <100.00%> (+0.08%)	⬆️

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