Auto merge of #23351 - CYBAI:fix-modes, r=nox

Fix modes for fetching classic worker script and introduce parser metadata for request

While reading [the spec](https://html.spec.whatwg.org/multipage/#fetch-a-classic-worker-script) for `fetch a classic worker script`, I found the `mode` and `credential-mode` are opposite to the spec. So, the first commit will fix it.

Also, I found there's a `parser metadata` for `request` so I tried to introduce it in this PR as well.

For WPT, I found there's a `/workers/constructors/Worker/same-origin.html` which was disabled in  #3180. We pass most of the tests now.

---
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [ ] These changes fix #___ (GitHub issue number if applicable)
- [x] There are tests for these changes

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components/script/fetch.rs

@@ -124,6 +124,7 @@ fn request_init_from_request(request: NetTraitsRequest) -> RequestBuilder {
         redirect_mode: request.redirect_mode,
         integrity_metadata: "".to_owned(),
         url_list: vec![],
+        parser_metadata: request.parser_metadata,
     }
 }