refactor(sysadvisor): consider per numa memory reserved

[cheney-lin]

What type of PR is this?

Enhancements

What this PR does / why we need it:

Which issue(s) this PR fixes:

Special notes for your reviewer:

[LuyaoZhong]

LGTM, please fix CI issue

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (a8cb4bd) 54.52% compared to head (78f6428) 54.56%.
Report is 1 commits behind head on main.

Files	Patch %	Lines
...esource/memory/headroompolicy/policy_numa_aware.go	95.83%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #443      +/-   ##
==========================================
+ Coverage   54.52%   54.56%   +0.04%     
==========================================
  Files         493      493              
  Lines       53784    53803      +19     
==========================================
+ Hits        29324    29357      +33     
+ Misses      21245    21223      -22     
- Partials     3215     3223       +8     

Flag	Coverage Δ
unittest	54.56% <95.83%> (+0.04%)	⬆️

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