Adds prow jobs for new e2e test flow

[gab-satchi]

cluster-api-aws-provider is moving its e2e tests to use the new cluster-api testing framework. The tests will be moved incrementally so setting up a new set of prow jobs to exercise the e2e tests through the new flow. Once we're confident in the new tests, a new PR will be created to revert back to a single set of e2e jobs.

[k8s-ci-robot]

Skipping CI for Draft Pull Request.
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[randomvariable]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: gab-satchi, randomvariable

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[k8s-ci-robot]

@gab-satchi: Updated the job-config configmap in namespace default at cluster default using the following files:

• key cluster-api-provider-aws-periodics.yaml using file config/jobs/kubernetes-sigs/cluster-api-provider-aws/cluster-api-provider-aws-periodics.yaml
• key cluster-api-provider-aws-postsubmits.yaml using file config/jobs/kubernetes-sigs/cluster-api-provider-aws/cluster-api-provider-aws-postsubmits.yaml
• key cluster-api-provider-aws-presubmits.yaml using file config/jobs/kubernetes-sigs/cluster-api-provider-aws/cluster-api-provider-aws-presubmits.yaml

In response to this:

cluster-api-aws-provider is moving its e2e tests to use the new cluster-api testing framework. The tests will be moved incrementally so setting up a new set of prow jobs to exercise the e2e tests through the new flow. Once we're confident in the new tests, a new PR will be created to revert back to a single set of e2e jobs.

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