remove http timeout and add context timeout on collections

[jairad26]

No description provided.

[linear]

HYP-1867 HTTP client timeout

Currently, we have all outbound HTTP calls hardcoded to a timeout of 10 seconds. This includes:

• HTTP fetch host function
• GraphQL client host function
• Model invoke host function

The hardcoded timeout makes it impossible to fetch data from any source that takes longer than 10 seconds to respond.

We should consider whether there should be a timeout by default at all, or if the default should be no timeout. We should also consider if the timeout value should be configurable in user code or in the manifest.

In all cases, we already cancel any request that is in-progress if the incoming function call is aborted, so there's not much risk in extending or removing the timeout.