feat: add async set cache

[vsseixaso]

What is the purpose of this pull request?

Enhance the HTTP client's cache middleware by adding an asynchronous option (asyncSet) for setting cache entries, improving performance by preventing blocking of the main execution flow.

What problem is this solving?

Addresses performance bottlenecks caused by synchronous cache writes, which can lead to delays with large responses or frequent requests. The asyncSet option allows asynchronous cache writes, reducing latency and improving responsiveness.

How should this be manually tested?

Setup:

1. Run node-vtex-api with yarn link and yarn watch.
2. Run a server that uses vtex/api (e.g. render-server) with the yarn link @vtex/api.

Configuration:

1. Enable asyncSetCache in the HTTP client's settings.

Monitoring:

1. Add the header: 'jaeger-debug-id': 'async_set_cache' to the request for a page.
2. Check trace on Honeycomb

Screenshots or example usage

Types of changes

• Bug fix (a non-breaking change which fixes an issue)
• New feature (a non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Requires change to documentation, which has been updated accordingly.