Update cloud-provider-azure variable names for consistency

[CecileRobertMichon]

Following up on kubernetes-sigs/azurefile-csi-driver#459.

cloud-provider-azure e2e uses different environment variable names than everything else (https://github.com/kubernetes-sigs/cloud-provider-azure/blob/83ec139e2224561e12e896c483b31cb08ad351a2/site/content/en/development/e2e/e2e-tests-azure.md). Updating kubetest to set the same environment variables for consistency. The new names are also slightly better syntactically IMO.

This change will have no effect on current tests. Kept the old variables for now. The plan is to update the actual vars once this is merged and then remove the old vars.

/assign @chewong @feiskyer @nilo19

[chewong]

/lgtm

[chewong]

/lgtm

[feiskyer]

/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: CecileRobertMichon, chewong, feiskyer

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Needs approval from an approver in each of these files:

• config/jobs/kubernetes-sigs/cloud-provider-azure/OWNERS [chewong,feiskyer]
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[k8s-ci-robot]

@CecileRobertMichon: Updated the job-config configmap in namespace default at cluster test-infra-trusted using the following files:

• key cloud-provider-azure-config.yaml using file config/jobs/kubernetes-sigs/cloud-provider-azure/cloud-provider-azure-config.yaml

Details

In response to this:

Following up on kubernetes-sigs/azurefile-csi-driver#459.

cloud-provider-azure e2e uses different environment variable names than everything else (https://github.com/kubernetes-sigs/cloud-provider-azure/blob/83ec139e2224561e12e896c483b31cb08ad351a2/site/content/en/development/e2e/e2e-tests-azure.md). Updating kubetest to set the same environment variables for consistency. The new names are also slightly better syntactically IMO.

This change will have no effect on current tests. Kept the old variables for now. The plan is to update the actual vars once this is merged and then remove the old vars.

/assign @chewong @feiskyer @nilo19

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