Run argo-rollouts-manager/plugin E2E tests as part of gitops-operator E2E tests

[jgwest]

What type of PR is this?

• Experimenting with running upstream argo-rollouts-manager E2E tests on downstream gitops-operator
• Since gitops-operator vendors in argo-rollouts-manager, the same tests should theoretically pass in both places

/kind enhancement

What does this PR do / why we need it:

Have you updated the necessary documentation?

• Documentation update is required by this PR.
• Documentation has been updated.

Which issue(s) this PR fixes:

Fixes #?

Test acceptance criteria:

• Unit Test
• E2E Test

How to test changes / Special notes to the reviewer:

[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[Rizwana777]

/lgtm

branch is out of date from main branch

[openshift-ci]

New changes are detected. LGTM label has been removed.

[openshift-ci]

@jgwest: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/v4.14-e2e	f0150a8	link	true	/test v4.14-e2e
ci/prow/v4.12-kuttl-sequential	f0150a8	link	true	/test v4.12-kuttl-sequential
ci/prow/v4.13-e2e	f0150a8	link	true	/test v4.13-e2e
ci/prow/v4.12-e2e	f0150a8	link	true	/test v4.12-e2e
ci/prow/v4.17-kuttl-sequential	f0150a8	link	true	/test v4.17-kuttl-sequential
ci/prow/v4.17-kuttl-parallel	f0150a8	link	true	/test v4.17-kuttl-parallel
ci/prow/v4.17-e2e	f0150a8	link	true	/test v4.17-e2e

Full PR test history. Your PR dashboard.

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