feat(publish-metrics): implement multiple otel improvements

[InesNi]

Description

Multiple changes in OTel:

1. url attribute is added to page spans in Playwright tracing

2. fix for bug in Playwright tracing support - using url attribute instead of name is used along with vu.uuid to match web vitals with appropriate pageSpan (replaceSpanNameRegex introduced a bug where web vitals would not appear for spans with replaced names)

3. remove test_id being added by default to OTel metrics

4. Request timing phases are recorded as attributes instead of spans in HTTP tracing for the purpose of reducing the cost. (e.g. dns_lookup span is now dns_lookup.duration attribute with a value in ms set on the request span it belongs to.)

   • !This will change the structure of traces for HTTP engine support

Testing

Tested manually, and will be added to OTel tracing tests in #2718

• Due to 4. changing the structure of tests the dd-adot.test that runs http test is adjusted to reflect the change in trace structure.

Pre-merge checklist

• Does this require an update to the docs?
• Does this require a changelog entry?

[hassy]

Test failure unrelated, merging.