Use Standard tier SKU for AKS e2e tests

[nojnhuh]

What type of PR is this?
/kind flake

What this PR does / why we need it:

This PR updates the CI templates to specify "Standard" tier AKS clusters instead of the default "Free" which was resulting in errors in some regions where AKS would fail to provision free clusters: https://prow.k8s.io/view/gs/kubernetes-jenkins/pr-logs/directory/pull-cluster-api-provider-azure-e2e-aks/1803862127094534144

As a result, this PR adds back westeurope to the bucket of regions we use to test which was frequently hitting these kinds of errors.

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #4945

Special notes for your reviewer:

• cherry-pick candidate

TODOs:

• squashed commits
• includes documentation
• adds unit tests

Release note:

NONE

[nojnhuh]

/cherry-pick release-1.15

[k8s-infra-cherrypick-robot]

@nojnhuh: once the present PR merges, I will cherry-pick it on top of release-1.15 in a new PR and assign it to you.

In response to this:

/cherry-pick release-1.15

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-sigs/prow repository.

[nojnhuh]

/assign @jackfrancis

[nojnhuh]

/test pull-cluster-api-provider-azure-e2e-aks

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 62.25%. Comparing base (5493e53) to head (97869ed).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4962   +/-   ##
=======================================
  Coverage   62.25%   62.25%           
=======================================
  Files         201      201           
  Lines       16912    16912           
=======================================
  Hits        10529    10529           
  Misses       5590     5590           
  Partials      793      793           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[jackfrancis]

/lgtm
/approve

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 73ce09ac501ccf54e2af72e8c370a338bfea4dd8

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jackfrancis

The full list of commands accepted by this bot can be found here.

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• OWNERS [jackfrancis]

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[nojnhuh]

@jackfrancis I didn't get the schema right on the first try. Should be good now if you could please LGTM.

[k8s-ci-robot]

@nojnhuh: 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-cluster-api-provider-azure-e2e-with-wi-optional	97869ed	link	false	/test pull-cluster-api-provider-azure-e2e-with-wi-optional

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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-sigs/prow repository. I understand the commands that are listed here.

[jackfrancis]

/test pull-cluster-api-provider-azure-conformance-custom-builds

[jackfrancis]

/lgtm

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 801f941e659146d5bdf85ac3c99a7f9d77ba2e83

[k8s-infra-cherrypick-robot]

@nojnhuh: #4962 failed to apply on top of branch "release-1.15":

Applying: Use Standard tier SKU for AKS e2e tests
Using index info to reconstruct a base tree...
M	hack/util.sh
M	templates/test/ci/cluster-template-prow-aks-clusterclass.yaml
M	templates/test/ci/cluster-template-prow-aks.yaml
M	templates/test/ci/prow-aks-aso/kustomization.yaml
M	templates/test/ci/prow-aks-clusterclass/kustomization.yaml
M	templates/test/ci/prow-aks/kustomization.yaml
Falling back to patching base and 3-way merge...
Auto-merging templates/test/ci/prow-aks/kustomization.yaml
CONFLICT (content): Merge conflict in templates/test/ci/prow-aks/kustomization.yaml
Auto-merging templates/test/ci/prow-aks-clusterclass/kustomization.yaml
CONFLICT (content): Merge conflict in templates/test/ci/prow-aks-clusterclass/kustomization.yaml
Auto-merging templates/test/ci/prow-aks-aso/kustomization.yaml
CONFLICT (content): Merge conflict in templates/test/ci/prow-aks-aso/kustomization.yaml
Auto-merging templates/test/ci/cluster-template-prow-aks.yaml
Auto-merging templates/test/ci/cluster-template-prow-aks-clusterclass.yaml
Auto-merging hack/util.sh
error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch=diff' to see the failed patch
Patch failed at 0001 Use Standard tier SKU for AKS e2e tests
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:

/cherry-pick release-1.15

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-sigs/prow repository.