4.4 OKD: run e2e-aws test before promoting it to fcos namespace

[vrutkovs]

This PR creates a temporary release with pending machine-os-content and runs e2e-aws test before updating machine-os-content tag in origin 4.4

/cc @smarterclayton

[openshift-ci-robot]

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[openshift-ci-robot]

@vrutkovs: The following test failed, say /retest to rerun them all:

Test name	Commit	Details	Rerun command
ci/prow/step-registry-shellcheck	c585ad0	link	/test step-registry-shellcheck

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.

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[vrutkovs]

Replaced by #6415