feat: update puma and autotuner plugins

[roelbondoc]

This allows the Puma and Autotuner to emit an event for stats, or alternavitely aggregate the stats to save on data.

Disable stats events for Puma and Autotuner:

puma:
  insights:
    events: false
autotuner:
  insights:
    events: false

Note: The Autotuner plugin will still event the report.autotuner event regardless of the above setting.

Enable aggregated metics for Puma and Autotuner.

puma:
  insights:
    metrics: true
autotuner:
  insights:
    metrics: true

In addition, you can now customer the frequency that the Puma plugin will record the stats. The default is every 1 second.

puma:
  insights:
    collection_interval: 1

Before submitting a pull request, please make sure the following is done:

1. If you've fixed a bug or added code that should be tested, add tests!
2. Run rake spec in the repository root.
3. Use a pull request title that conforms to conventional commits.