feat: auto-generate rla's namespace on 'convert' subcommand

[GGabriele]

No description provided.

[mheap]

@GGabriele Thank you! Are there any other plugins that you know of that could benefit from the same conversion?

[GGabriele]

The only other EE Plugins with auto = true fields are the following, but none of these fields are required, so the plugin creation would be successful even without them:

• graphql-rate-limiting-advanced (namespace)
• kafka-log (cluster_name)
• kafka-upstream (cluster_name)
• openid-connect (cache_tokens_salt)

[mheap]

Does the standard rate-limiting plugin have the same required field (and/or can you explain how I can check myself so that I can save you some time?)