feat: adopt Fetch API Request and Response

[kettanaito]

This change is a pre-requisite for mswjs/msw#1404.

Changes

• Adds support for XMLHttpRequest uploads (closes XMLHttpRequest: Support "upload" events #187). Now, response readable streams are streamed to the consumer, respecting the progress event.
• Fixes XMLHttpRequest events order to be correct.
• Fixes XMLHttpRequest events for when the request fails (middleware throws an exception). Updates readyState to DONE, emits loadend.
• Fixes Arraybuffer response in XMLHttpRequest assumes always to be a string? #158 by d52d71d
• Fixes XMLHttpRequest: Keep "status" as 0 until request succeeds #281 by d886833
• Closes Expose formData method on incoming request from the interceptor #288 because now the intercepted request has all body reading methods.

Dependencies

• fix(Request): support custom "credentials" value remix-run/web-std-io#21

[kettanaito]

The CI is failing due to the credentials bug in @remix-run/web-fetch. The fix opened in remix-run/web-std-io#21.

[kettanaito]

Fetch API support is done here. I'm adding a custom createRequestWithCredentials abstraction until Remix respects the credentials property in the Request class.

[kettanaito]

Released: v0.18.0 🎉

This has been released in v0.18.0!

• 📄 Release notes
• 📦 npm package

Make sure to always update to the latest version (npm i @mswjs/interceptors@latest) to get the newest features and bug fixes.

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