[Automation] Bump product version numbers

[elastic-observability-automation]

Bump release versions in the config/versions.yml

Update config/versions.yml elasticsearch-client-ruby 9.4.0

change detected: * key "$.versioning_systems.elasticsearch-client-ruby.current" updated from "9.3.1" to "9.4.0", in file "config/versions.yml"

v9.4.0

# Gem

* Tested versions of Ruby for 9.4.0:
  * Ruby MRI: `3.3`, `3.4`, `4.0`
  * JRuby `9.3`, `9.4`, `10.0`

## ES|QL Query Builder

The [Ruby ES|QL Query Builder](https://github.com/elastic/esql-ruby) [version 0.6.0](https://github.com/elastic/esql-ruby/releases/tag/v0.6.0) has been released. The version adds support for `INLINE_STATS`, `METRICS_INFO`, `PROMQL`, `REGISTERED_DOMAIN`, `SET`, `URI_PARTS`, and `USER_AGENT`.

# Elasticsearch API

## API Updates

* `async_search.get`: New Parameter `:return_intermediate_results`. Specifies whether the response should contain intermediate results if the query is still running when the wait_for_completion_timeout.
* `project.tags`: Parameter removed `:project_routing`. Added `:body` parameter.
* `reindex_rethrottle`: New Parameter `:group_by`.
* `search_mvt`: Parameter removed `:project_routing`. Specifies a subset of projects to target for the search using project.
* `streams.logs_disable`: New Parameter `:name`. The stream type to disable. (*Required*)
* `streams.logs_enable`: New Parameter `:name`. The stream type to enable. (*Required*)
* `text_structure.find_field_structure`, `text_structure.find_message_structure`, `text_structure.find_structure`: New Parameter `:should_parse_recursively`. If the format is `ndjson`, you can specify whether to parse nested JSON objects recursively.
* The APIs in the `streams` namespace were behind a feature flag and now they're not. They are still available in Technical Preview.
* `indices.downsample` has been promoted from Technical Preview to stable.

## New APIs

* `inference.put_fireworksai` - Create a Fireworks AI inference endpoint.

In Technical Preview, available behind the feature flag `reindex_management_api`.

* `cancel_reindex` - Cancel an ongoing reindex task.
* `get_reindex` - Get the status and progress of a specific reindex task.
* `list_reindex` - Get information about all currently running reindex tasks.

In Technical Preview:

* `inference.embedding` - Perform dense embedding inference on the service.
* `security.clone_api_key` -  Create a copy of an existing API key with a new ID. This is intended for applications (such as Kibana) that need to create API keys on behalf of a user using an existing API key credential.

Available only in Serverless, in Technical Preview:

* `project.create_many_routing` - Create or update project routing expressions.
* `project.create_routing` - Create or update a project routing expression.
* `project.delete_routing` - Delete a project routing expression.
* `project.get_many_routing` - Get project routing expressions.
* `project.get_routing` - Get a project routing expression.

## Deleted APIs

The following APIs were in technical preview behind a feature flag and have been removed:
* `indices.delete_sample_configuration`
* `indices.get_all_sample_configuration`
* `indices.get_sample`
* `indices.get_sample_configuration`
* `indices.get_sample_stats`
* `indices.put_sample_configuration`

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