fix: allow space separated load balancer source ranges

[jwtty]

What type of PR is this?

/kind bug

What this PR does / why we need it:

Allow space-separated load balancer source ranges in service annotation. Allow service.beta.kubernetes.io/load-balancer-source-ranges to be used together with service.beta.kubernetes.io/azure-allowed-service-tags.

Which issue(s) this PR fixes:

Fixes #5883

Special notes for your reviewer:

Does this PR introduce a user-facing change?

Allow space-separated load balancer source ranges in service annotation. Allow `service.beta.kubernetes.io/load-balancer-source-ranges` to be used together with `service.beta.kubernetes.io/azure-allowed-service-tags`.

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

[zarvd]

LGTM

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jwtty, lodrem

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• OWNERS [jwtty]

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[MartinForReal]

/lgtm

[jwtty]

/cherrypick release-1.28

[jwtty]

/cherrypick release-1.29

[k8s-infra-cherrypick-robot]

@jwtty: new pull request created: #5887

In response to this:

/cherry-pick release-1.29

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[k8s-infra-cherrypick-robot]

@jwtty: #5885 failed to apply on top of branch "release-1.28":

Applying: allow space separated load balancer source ranges
Using index info to reconstruct a base tree...
A	pkg/provider/loadbalancer/configuration.go
A	pkg/provider/loadbalancer/configuration_test.go
Falling back to patching base and 3-way merge...
CONFLICT (modify/delete): pkg/provider/loadbalancer/configuration.go deleted in HEAD and modified in allow space separated load balancer source ranges. Version allow space separated load balancer source ranges of pkg/provider/loadbalancer/configuration.go left in tree.
Auto-merging pkg/provider/loadbalancer/accesscontrol_test.go
CONFLICT (content): Merge conflict in pkg/provider/loadbalancer/accesscontrol_test.go
error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch=diff' to see the failed patch
Patch failed at 0001 allow space separated load balancer source ranges
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".

In response to this:

/cherrypick release-1.28

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[k8s-infra-cherrypick-robot]

@jwtty: new pull request could not be created: failed to create pull request against kubernetes-sigs/cloud-provider-azure#release-1.29 from head k8s-infra-cherrypick-robot:cherry-pick-5885-to-release-1.29: status code 422 not one of [201], body: {"message":"Validation Failed","errors":[{"resource":"PullRequest","code":"custom","message":"A pull request already exists for k8s-infra-cherrypick-robot:cherry-pick-5885-to-release-1.29."}],"documentation_url":"https://docs.github.com/rest/pulls/pulls#create-a-pull-request"}

In response to this:

/cherrypick release-1.29

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.