fix: Fixed subRules attribute in the ZIA package

[willguibr]

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[codecov]

Codecov Report

Attention: Patch coverage is 86.11111% with 5 lines in your changes are missing coverage. Please review.

Project coverage is 51.44%. Comparing base (6a8f6e3) to head (c845eb7).
Report is 1 commits behind head on master.

Files	Patch %	Lines
zia/services/devicegroups/devicegroups.go	85.71%	2 Missing and 1 partial ⚠️
zia/services/adminuserrolemgmt/roles/adminroles.go	85.71%	1 Missing ⚠️
...services/location/locationgroups/locationgroups.go	85.71%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #251      +/-   ##
==========================================
+ Coverage   49.07%   51.44%   +2.37%     
==========================================
  Files         271      271              
  Lines        6780     6761      -19     
==========================================
+ Hits         3327     3478     +151     
+ Misses       3009     2820     -189     
- Partials      444      463      +19     

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