Replace outdated http request dependency with Node 18's `fetch`

New Feature / Enhancement Checklist

• I am not disclosing a vulnerability.
• I am not just asking a question.
• I have searched through existing issues.

Current Limitation

Our docs state:

You can use your favorite npm module to make HTTP requests, such as request. Parse Server also supports Parse.Cloud.httpRequest for legacy reasons

Why should we continue to support a legacy HTTP module, which hasn't been updated in 3 years, where there are more popular solutions that constantly update their security issues and vulnerabilities?

The http module also uses deprecated methods, such as querystring and parse.

Also request is archived, so we shouldn't recommend that either.

We've seen Parse.Cloud.httpRequest be the source of many issues

Feature / Enhancement Description

Migrate to a dedicated HTTP library, such as axios

Example Use Case

Log Parse.Cloud.httpRequest is depreciated. Please migrate to different HTTP request solution

Alternatives / Workarounds

• Keep the legacy library as is.
• Set Parse.Cloud.httpRequest as an alias to axios.

3rd Party References

Start by tracing the Parse.Cloud.httpRequest entry point and locating its current legacy HTTP dependency. Resolve whether the intended replacement is Node 18's fetch or axios, then identify the relevant request tests and documentation references. Done should include the migration, updated guidance, and the proposed deprecation log without breaking existing HTTP request behavior.