Exclude maps from slince bounce check rule

[ccojocar]

This exclude maps type form slice bounds checks.

This is a partial fix for #1005

[codecov-commenter]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.24% 🎉

Comparison is base (21d13c9) 71.94% compared to head (77e2dbb) 72.18%.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1006      +/-   ##
==========================================
+ Coverage   71.94%   72.18%   +0.24%     
==========================================
  Files          51       51              
  Lines        3632     3635       +3     
==========================================
+ Hits         2613     2624      +11     
+ Misses        928      923       -5     
+ Partials       91       88       -3     

Files Changed	Coverage Δ
rules/slice_bounds.go	76.75% <100.00%> (+3.24%)	⬆️

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