feat: Add testing overlay

[ruivieira]

This overlay is intended to use in TrustyAI development and testing.

This PR adds an ImagePullPolicy: Always to the operator image for testing purposes.

[github-actions]

PR image build and manifest generation completed successfully!

📦 PR image: quay.io/trustyai/trustyai-service-operator-ci:ced42c3eb0206337d1ed58955f3d20d4479c3291

🗂️ CI manifests

[openshift-ci]

@ruivieira: 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
ci/prow/trustyai-service-operator-e2e	ced42c3	link	true	/test trustyai-service-operator-e2e

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[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: adolfo-ab

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