cluster-api 🌱 WIP: Add MachinePools to autoscaler e2e test

What this PR does / why we need it: This PR adds MachinePools to the autoscaler e2e tests. This is a follow-up task to enabling MachinePools in ClusterClass.

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 part of #10028

/area clusterclass

Jan 31 '24 23:01 willie-yao

/test ?

Jan 31 '24 23:01 willie-yao

@willie-yao: The following commands are available to trigger required jobs:

/test pull-cluster-api-build-main
/test pull-cluster-api-e2e-blocking-main
/test pull-cluster-api-e2e-conformance-ci-latest-main
/test pull-cluster-api-e2e-conformance-main
/test pull-cluster-api-e2e-dualstack-and-ipv6-main
/test pull-cluster-api-e2e-main
/test pull-cluster-api-e2e-mink8s-main
/test pull-cluster-api-e2e-upgrade-1-29-1-30-main
/test pull-cluster-api-test-main
/test pull-cluster-api-test-mink8s-main
/test pull-cluster-api-verify-main

The following commands are available to trigger optional jobs:

/test pull-cluster-api-apidiff-main

Use /test all to run the following jobs that were automatically triggered:

pull-cluster-api-apidiff-main
pull-cluster-api-build-main
pull-cluster-api-e2e-blocking-main
pull-cluster-api-test-main
pull-cluster-api-verify-main

In response to this:

/test ?

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Jan 31 '24 23:01 k8s-ci-robot

@sbueringer Figured out the issues and this should now be ready for review! I'm wondering if there's a more efficient way to test both MD and MP in this flow right now though... I'm having to remove the annotations and delete the previous scale up deployment to test MPs without unpredictable behavior from the autoscaler.

Mar 26 '24 22:03 willie-yao