Extension might not be loaded when using worker indexing and language worker fails to initialize

[cjaliaga]

When using worker indexing we need the language worker to start in order to reply to the load function medadata request (even if the worker denies indexing and we need to fallback to host indexing). We've seen scenarios where the language worker fails to start on the first try (such a timeout), 0 functions are found and in consequence no extension is loaded.

On a retry, the language worker starts, functions metadata is loaded and functions are found but this time, the extensions are not loaded:

The 'Function1' function is in error: The binding type(s) 'queueTrigger, queue' were not found in the configured extension bundle. Please ensure the type is correct and the correct version of extension bundle is configured.

Reference ICM: 494775054

Related to #9928