Cherry picks of #4891 and #5042 against release-1.28

[nilo19]

What type of PR is this?

/kind feature

What this PR does / why we need it:

#4891: Support shared load balancer health probe mode. By setting clusterServiceLoadBalancerHealthProbeMode to shared, all cluster services will share one health probe targeting the kube-proxy port 10256 and /healthz by default. The health check port and path can be configured by clusterServiceSharedLoadBalancerHealthProbePort and clusterServiceSharedLoadBalancerHealthProbePort.

#5042: We remove the health probe related to the service when we delete the service, and this includes removing the shared health probe. But the shared probe should not be removed if there are other services using it. This PR checks if there are other services referencing the shared probe before removing it.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?

feat: support shared load balancer health probe mode. By setting `clusterServiceLoadBalancerHealthProbeMode` to `shared`, all cluster services will share one health probe targeting the kube-proxy port 10256 and /healthz by default. The health check port and path can be configured by `clusterServiceSharedLoadBalancerHealthProbePort` and `clusterServiceSharedLoadBalancerHealthProbePort`.

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: nilo19

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[nilo19]

/retest

[nilo19]

/retest

[nilo19]

/test pull-cloud-provider-azure-e2e-capz-1-28

[jwtty]

/lgtm

[k8s-ci-robot]

@nilo19: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-cloud-provider-azure-e2e-ccm-vmss-capz-1-28	c6167d0	link	unknown	/test pull-cloud-provider-azure-e2e-ccm-vmss-capz-1-28

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