feat: Add attribute to allow specifyin deployment labels/annotations

[amisevsk]

What does this PR do?

Add attributes controller.devfile.io/deployment-labels and controller.devfile.io/deployment-annotations which can be used to specify labels and annotations to be applied to the workspace deployment

What issues does this PR fix or reference?

Closes#698

Is it tested? How?

To test, apply the DevWorkspace

cat <<EOF | kubectl apply -f -apiVersion: workspace.devfile.io/v1alpha2kind: DevWorkspacemetadata:
name: plainspec:
routingClass: basicstarted: truetemplate:
attributes:
controller.devfile.io/storage-type: ephemeralcontroller.devfile.io/deployment-labels: my-label: foomy-other-label: barcontroller.devfile.io/deployment-annotations: my-attribute: foomy-other-attribute: barcomponents:
- container:
command:
- tail
- -f
- /dev/nullimage: quay.io/amisevsk/web-terminal-tooling:devmemoryLimit: 512MimountSources: truename: web-terminalEOF

PR Checklist

• E2E tests pass (when PR is ready, comment /test v8-devworkspace-operator-e2e, v8-che-happy-path to trigger)
  • v8-devworkspace-operator-e2e: DevWorkspace e2e test
  • v8-che-happy-path: Happy path for verification integration with Che

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: amisevsk, ibuziuk

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