[Feature]: Response http version

[smckee-r7]

🚀 Feature Request

Having a way to get the http version of a given response would be nice to have. Currently the only way to get this information is by enabling HAR recording and pulling it from there. I've created a PR to add this: #39309

Example

const response = await page.goto("https://example.com");
const httpVersion = await response.httpVersion(); // returns string HTTP/1.1, HTTP/2.0, etc

Motivation

The Response object already exposes useful network level data via serverAddr() and securityDetails() but provides no way of accessing the http version of a given response without enabling the HAR recording and processing the entire HAR file after the context is closed.

[Skn0tt]

Hi! For my understanding, can you elaborate on your usecase for this? I see why you'd want to assert on the HTTP Version of APIResponse, but not so much for browser Response.