fix: Bring back multi-arch image builds

[ruivieira]

Bring back multi-arch builds.
Removed with:

• Revert multi-arch temporarily #235

[modassarrana89]

Please review & approve the changes

[modassarrana89]

/retest

[openshift-ci]

@ruivieira: 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/trustyai-service-operator-e2e	d78dd6c	link	true	/test trustyai-service-operator-e2e
ci/prow/images	aaa9586	link	true	/test images

Full PR test history. Your PR dashboard.

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[github-actions]

PR image build and manifest generation completed successfully!

📦 PR image: quay.io/trustyai/trustyai-service-operator-ci:aaa9586608f32c4f3aefa270dafdc3156616dfa4

📦 LMES driver image: quay.io/trustyai/ta-lmes-driver:aaa9586608f32c4f3aefa270dafdc3156616dfa4

📦 LMES job image: quay.io/trustyai/ta-lmes-job:aaa9586608f32c4f3aefa270dafdc3156616dfa4

📦 Guardrails orchestrator image: quay.io/trustyai/ta-guardrails-orchestrator:aaa9586608f32c4f3aefa270dafdc3156616dfa4

🗂️ CI manifests

devFlags:
  manifests:
    - contextDir: config
      sourcePath: ''
      uri: https://api.github.com/repos/trustyai-explainability/trustyai-service-operator-ci/tarball/operator-aaa9586608f32c4f3aefa270dafdc3156616dfa4

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: sheltoncyril

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