Disable warning on volume-enabled property and document how it should be configured

[anna-geller]

Feature description

For now, the right way is to use:

kestra:
  plugins:
    configurations:
      - type: io.kestra.plugin.scripts.runner.docker.DockerTaskRunner
        values:
          volume-enabled: true

Before, it's used to be:

kestra:
  tasks:
    scripts:
      docker:
        volume-enabled: true

Even if you configure it as shown in the first option, the script plugin will raise a warning:

We should find a way to suppress that warning and then fix the documentation:
https://kestra.io/docs/developer-guide/scripts/bind-mount (kestra-io/docs#1255)

[wrussell1999]

Related issue: #3531