Need deployment page or information added to the architecture page

### Describe what's missing in our docs

Currently there is an architecture page https://kestra.io/docs/architecture, that highlights small, medium and HA deployments, but it does not discuss how to deploy these components individually. For example, if I wanted to deploy just the worker to an environment that is behind a firewall and managed through a Kestra instance that is outside on another network, how is this done ?

Start with the architecture page at https://kestra.io/docs/architecture and review its small, medium, and HA deployment guidance. Document how individual components such as a worker can be deployed, including the firewall and externally managed Kestra instance scenario. Done means the architecture documentation explains these deployment patterns clearly.

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