fix: skip pod when getTopologyHints in ORM

[WangZzzhe]

What type of PR is this?

Bug fixes

What this PR does / why we need it:

Skip pods which are not system cores but owned by daemonSet when getTopologyHints in ORM.

Which issue(s) this PR fixes:

Special notes for your reviewer:

[codecov]

Codecov Report

Attention: Patch coverage is 73.68421% with 5 lines in your changes missing coverage. Please review.

Project coverage is 56.19%. Comparing base (5e1814b) to head (02597ce).
Report is 13 commits behind head on main.

Files	Patch %	Lines
pkg/agent/orm/manager.go	70.58%	3 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #620      +/-   ##
==========================================
+ Coverage   56.14%   56.19%   +0.04%     
==========================================
  Files         535      543       +8     
  Lines       49865    50387     +522     
==========================================
+ Hits        27997    28315     +318     
- Misses      18307    18474     +167     
- Partials     3561     3598      +37     

Flag	Coverage Δ
unittest	56.19% <73.68%> (+0.04%)	⬆️

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