[8.16] [ML] File upload: enabling check for model allocations (#197395)…

… (#197677)

# Backport

This will backport the following commits from `main` to `8.16`:
- [[ML] File upload: enabling check for model allocations
(#197395)](#197395)

<!--- Backport version: 9.4.3 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

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File upload: enabling check for model allocations (#197395)\n\nEnables
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to 0, but it is still valid for\r\nuse. Uploading a file will cause it
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File upload: enabling check for model allocations (#197395)\n\nEnables
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the inference endpoints.\r\n\r\nThe adaptive allocation count can drop
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File upload: enabling check for model allocations (#197395)\n\nEnables
the previously commented out check for `num_allocations` when\r\nlisting
the inference endpoints.\r\n\r\nThe adaptive allocation count can drop
to 0, but it is still valid for\r\nuse. Uploading a file will cause it
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BACKPORT-->

Co-authored-by: James Gowdy <jgowdy@elastic.co>

x-pack/plugins/data_visualizer/server/routes.ts

@@ -96,9 +96,9 @@ export function routes(coreSetup: CoreSetup<StartDeps, unknown>, logger: Logger)
 
           const filteredInferenceEndpoints = endpoints.filter((endpoint) => {
             return (
-              endpoint.task_type === 'sparse_embedding' || endpoint.task_type === 'text_embedding'
-              // TODO: add this back in when the fix has made it into es in 8.16
-              // && endpoint.service_settings.num_allocations > 0
+              (endpoint.task_type === 'sparse_embedding' ||
+                endpoint.task_type === 'text_embedding') &&
+              endpoint.service_settings.num_allocations >= 0
             );
           });