nfd-worker: Add a readiness probe

[omerap12]

Fixes: #1806
Feat: Introduce readiness probe for the NFD worker.
The readiness probe ensures that feature discovery has successfully completed and the NodeFeature CR object has been created or updated. (The liveness probe currently always returns true.)

Helm values have been updated to support both liveness and readiness probes.

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: omerap12
Once this PR has been reviewed and has the lgtm label, please assign arangogutierrez for approval. For more information see the Kubernetes Code Review Process.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[netlify]

✅ Deploy Preview for kubernetes-sigs-nfd ready!

Name	Link
🔨 Latest commit	3013007
🔍 Latest deploy log	https://app.netlify.com/sites/kubernetes-sigs-nfd/deploys/66c0626314baa60008bfb1ca
😎 Deploy Preview	https://deploy-preview-1838--kubernetes-sigs-nfd.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[k8s-ci-robot]

PR needs rebase.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[k8s-triage-robot]

The Kubernetes project currently lacks enough contributors to adequately respond to all PRs.

This bot triages PRs according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the PR is closed

You can:

• Mark this PR as fresh with /remove-lifecycle stale
• Close this PR with /close
• Offer to help out with Issue Triage

Please send feedback to sig-contributor-experience at kubernetes/community.

/lifecycle stale