## What this PR does
The Vertical Pod Autoscaler is a component with resource requirements
highly dependent on the environment it is running in, hence it also
needs to be autoscaled to reduce the number of configuration parameters
that platform admins need to manage. This patch introduces an ancillary
autoscaler that watches only the primary autoscaler's namespace and
adjusts its resource requests and limits, since the autoscaler cannot
autoscale itself. In turn, the primary autoscaler can autoscale the
ancillary autoscaler.
### Release note
```release-note
[platform] Implement autoscaling for the Vertical Pod Autoscaler itself.
```
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## Summary by CodeRabbit
* **New Features**
* Added an option to enable a dedicated Vertical Pod Autoscaler (VPA)
for managing the VPA itself, including new namespace and resource
creation when enabled.
* **Configuration**
* Introduced a new setting to toggle the VPA-for-VPA feature.
* Updated resource configuration for the recommender component by
removing specific CPU and memory settings.
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