fix bug 8168 GetEndpoint resolving fail

[maximrub]

What type of PR is this?

/kind bug

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #8168

Special notes for your reviewer:

There is an endpoint resolution failure due to a changed JSON schema, causing scaling groups not to be discovered. Because of this, the autoscaler doesn't work at all.
failed to unmarshal endpoint response, error: json: cannot unmarshal array into Go struct field EndpointObj.Endpoints.Endpoint.Protocols of type string
The Protocols is not at use at all.

Does this PR introduce a user-facing change?

no

alicloud: fix Endpoint Resolution

[k8s-ci-robot]

Hi @maximrub. Thanks for your PR.

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[k8s-triage-robot]

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[maximrub]

@aleksandra-malinowska @vadasambar can you please have a look?

[maximrub]

@aleksandra-malinowska @vadasambar ?

[maximrub]

@x13n @ringtail can you please look on this one too?

[x13n]

I don't have the required context for this cloud provider, but the change looks ok from core CA perspective, so can approve after @ringtail LGTM.

[maximrub]

@ringtail can you please have a look?

[maximrub]

@x13n @ringtail is there someone else who can look into this?

[ringtail]

@x13n @ringtail is there someone else who can look into this?

/LGTM

[k8s-ci-robot]

@ringtail: changing LGTM is restricted to collaborators

In response to this:

@x13n @ringtail is there someone else who can look into this?

/LGTM

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[x13n]

Approving per the comments above.

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: maximrub, x13n

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[maximrub]

@x13n @ringtail I will do a cherry pick to 1.32.1