feat: handle MC force delete

[Arvindthiru]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.10%. Comparing base (08bfefc) to head (e1d8525).
Report is 9 commits behind head on main.

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@@            Coverage Diff             @@
##             main     #192      +/-   ##
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+ Coverage   78.61%   79.10%   +0.49%     
==========================================
  Files          22       24       +2     
  Lines        2899     2288     -611     
==========================================
- Hits         2279     1810     -469     
+ Misses        490      349     -141     
+ Partials      130      129       -1     

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[Arvindthiru]

For these resources in the fleet-member namespaces there are controllers running on the hub cluster which clean up the finalizers when a delete is issued on the resources so we can ignore these resources when MC needs to be force deleted

EndpointSliceExport - https://github.com/Azure/fleet-networking/blob/main/pkg/controllers/hub/endpointsliceexport/controller.go#L334

InternalServiceImport - https://github.com/Azure/fleet-networking/blob/main/pkg/controllers/hub/internalserviceimport/controller.go#L264

InternalServiceExport - https://github.com/Azure/fleet-networking/blob/main/pkg/controllers/hub/internalserviceexport/controller.go#L119

[Arvindthiru]

Based on re-sync period configured objects are re-listed and OnUpdate is called,

Informer interface with ResourceEventHandler: https://github.com/kubernetes-sigs/controller-runtime/blob/main/pkg/cache/cache.go#L113
ResourceEventHandler OnUpdate https://github.com/kubernetes/client-go/blob/master/tools/cache/controller.go#L214-L219

We might need to set a re-sync period for this particular controller to account for this.