fewer default_max_warnings

[adienes]

addresses #1083

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: +0.04 🎉

Comparison is base (b3b717a) 90.22% compared to head (e5158e5) 90.26%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1084      +/-   ##
==========================================
+ Coverage   90.22%   90.26%   +0.04%     
==========================================
  Files           9        9              
  Lines        2271     2271              
==========================================
+ Hits         2049     2050       +1     
+ Misses        222      221       -1     

Impacted Files	Coverage Δ
src/CSV.jl	70.00% <ø> (ø)

... and 1 file with indirect coverage changes

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[quinnj]

You can control this via the maxwarnings keyword arg, so I don't think this change is as necessary.