http: add POST example to request() function

[hunterachieng]

Summary

Add POST example to request() function.

Fixes #1083

Details

Added a POST request example to the http request() function.

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Review Checklist

Before merging, the reviewer should check the following items:

• Does the PR do what it claims to do?
• If this is a new adaptor, added the adaptor on marketing website ?
• If this PR includes breaking changes, do we need to update any jobs in
  production? Is it safe to release?
• Are there any unit tests?
• Is there a changeset associated with this PR? Should there be? Note that
  dev only changes don't need a changeset.
• Have you ticked a box under AI Usage?

[josephjclark]

@hunterachieng can you please fix the PR description and mark the AI disclaimer? I cannot review PRs (even simple ones) if the admin is not accurate

[hunterachieng]

@hunterachieng can you please fix the PR description and mark the AI disclaimer? I cannot review PRs (even simple ones) if the admin is not accurate

Done

[josephjclark]

Thank you @hunterachieng . By the way you can just delete the sections that aren't relevant. Like you don't need a details section for such a simple API (although you might choose to use that space to talk about why the example looks like it does, what options you considered, what you prioritised, why the example is valuable, etc)

Anyway can you please bump the versions and push?

[josephjclark]

@hunterachieng reminder to run pnpm changeset version here so that I can merge and release. Thanks!

[hunterachieng]

@josephjclark This is done