fix: fix get null podCIDR and serviceCIDR

[cyclinder]

Thanks for contributing!

Notice:

• unite test or E2E test
• do not forget essential code comment and log
• document for the PR
• release note label
  "release/none"
  "release/bug"
  "release/feature"
• read about Contribution notice: https://spidernet-io.github.io/spiderpool/latest/develop/contributing/

What issue(s) does this PR fix:

Fixes #4464

Special notes for your reviewer:

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 42 lines in your changes missing coverage. Please review.

Project coverage is 1.40%. Comparing base (7a0dd79) to head (9412447).
Report is 2 commits behind head on release-v0.8.

Files with missing lines	Patch %	Lines
pkg/coordinatormanager/coordinator_informer.go	0.00%	42 Missing ⚠️

Additional details and impacted files

@@               Coverage Diff                @@
##           release-v0.8   #4476       +/-   ##
================================================
- Coverage         80.86%   1.40%   -79.47%     
================================================
  Files                49      54        +5     
  Lines              5446    6332      +886     
================================================
- Hits               4404      89     -4315     
- Misses              880    6233     +5353     
+ Partials            162      10      -152     

Flag	Coverage Δ
unittests	1.40% <0.00%> (-79.47%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
pkg/coordinatormanager/coordinator_informer.go	0.00% <0.00%> (ø)

... and 53 files with indirect coverage changes

[weizhoublue]

看着，只有 这个 0.8 分支 会出现 CI 的chart 错误

[cyclinder]

看着，只有 这个 0.8 分支 会出现 CI 的chart 错误

在哪里出现错误？