Recheck policy rules for inconsistencies

[viccuad]

Check all published policies spec.rules for inconsistencies. Some policies have spec.rules items that are wrong, as they have . See here one example.

Acceptance criteria

For each policy:

• [x] Check metadata.yml, artifacthub-pkg.yml, E2E tests for incorrect spec.rules and update if so.
• [x] Publish new versions if needed.
• [x] Consume new versions in kubewarden-defaults helm chart if needed.
• [x] Check that the kubewarden-defaults templates for those policies are correct and don't incur in similar mistakes.

[viccuad]

Checked the ones shipped in kubewarden-defaults:

• kubewarden/policies/allow-privilege-escalation-psp
• kubewarden/policies/host-namespaces-psp
• kubewarden/policies/pod-privileged
• kubewarden/policies/user-group-psp
• kubewarden/policies/hostpaths-psp
• kubewarden/policies/capabilities-psp

[viccuad]

All policies checked; open PRs pending.

[viccuad]

Published v.0.15 of capabilities policy, opened PR to consume in helm charts. I consider this done.