[improve][broker] ResourceGroupService alloc much memory even we do not use
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Description
### Search before asking
- [X] I searched in the [issues](https://github.com/apache/pulsar/issues) and found nothing similar.
### Motivation
add a switch to open resource group usage
this will use more cpu to process gc
[20221028-155041.html.zip](https://github.com/apache/pulsar/files/9886467/20221028-155041.html.zip)
### Solution
add a switch to open resource group usage
### Alternatives
add a switch to open resource group usage
### Anything else?
add a switch to open resource group usage
### Are you willing to submit a PR?
- [X] I'm willing to submit a PR!
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