Fix controller panic in cilium ipam is multi-pool

[weizhoublue]

robot cherry pick PR #4433 from cyclinder,to branch release-v1.0, action https://github.com/spidernet-io/spiderpool/actions/runs/12542894343 , commits 2143560

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.12%. Comparing base (dfc289e) to head (4a1d89d).
Report is 2 commits behind head on release-v1.0.

Additional details and impacted files

@@               Coverage Diff                @@
##           release-v1.0    #4455      +/-   ##
================================================
- Coverage         79.60%   79.12%   -0.48%     
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  Files                51       51              
  Lines              5697     5697              
================================================
- Hits               4535     4508      -27     
- Misses              994     1025      +31     
+ Partials            168      164       -4     

Flag	Coverage Δ
unittests	79.12% <ø> (-0.48%)	⬇️

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see 1 file with indirect coverage changes