Bug-fix Confluence deployment with Kyverno Policies enabled
## Description
Installation using the default values in the [doc](https://repo1.dso.mil/big-bang/product/community/confluence/-/blob/main/docs/DEVELOPMENT_MAINTENANCE.md?ref_type=heads#test-valuesyaml) results in the error below.
## Bug
```
Warning FailedCreate 4m (x19 over 25m) statefulset-controller create Pod confluence-0 in StatefulSet confluence failed error: admission webhook "validate.kyverno.svc-fail" denied the request:
resource Pod/confluence/confluence-0 was blocked due to the following policies
require-drop-all-capabilities:
drop-all-capabilities: 'validation failure: Containers must drop all Linux capabilities
by setting the fields spec.containers[*].securityContext.capabilities.drop, spec.initContainers[*].securityContext.capabilities.drop,
and spec.ephemeralContainers[*].securityContext.capabilities.drop to ALL.'
```
## Solution
Setting `require-drop-all-capabilities` to `Audit` allows Confluence to install. Confluence chart would need to be updated with `drop: ALL` added to the `securityContext`
issue