feat: add support for deployment annotations to helm chart

[charlie-haley]

Which component this PR applies to?

helm charts

What type of PR is this?

/kind feature

What this PR does / why we need it:

Due to this issue #4784, we need access to annotations on the Deployment so we can reload the pod every time the workload cluster kubeconfig updates.

Which issue(s) this PR fixes:

Special notes for your reviewer:

Does this PR introduce a user-facing change?

new property in values: added 'annotations' property to allow setting annotations on the Deployment

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[gjtempleton]

Hey, thanks for the PR.

One request, and one inform on how to get the PR checks passing.

[gjtempleton]

Thanks!

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: charlie-haley, gjtempleton

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