feat(shield): expose dns detections directly

[aroberts87]

What this PR does / why we need it:

Add DNS Detections as a configurable in the 'features.detections' block for enabling the DNS Detections feature in the Host Shield.

Checklist

• [x] Title of the PR starts with type and scope, (e.g. feat(agent,node-analyzer,sysdig-deploy):)
• [x] Chart Version bumped for the respective charts
• [x] Variables are documented in the README.md (or README.tpl in some charts)
• [x] Check GithubAction checks (like lint) to avoid merge-check stoppers
• [x] All test files are added in the tests folder of their respective chart and have a "_test" suffix

[github-actions[bot]]

This PR is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 7 days

[github-actions[bot]]

This PR is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 7 days

[github-actions[bot]]

This PR has been closed due to inactivity.