[cherry-pick] Fix WebView event parser following Browser v5

[ncreated]

What and why?

🍒 Cherry-picking #1552 to have the "Browser V5 Event Parser" fix available in develop without waiting for release/2.5.0.

Review checklist

• Feature or bugfix MUST have appropriate tests (unit, integration)
• Make sure each commit and the PR mention the Issue number or JIRA reference
• Add CHANGELOG entry for user facing changes

Custom CI job configuration (optional)

• Run unit tests for Core, RUM, Trace, Logs, CR and WVT
• Run unit tests for Session Replay
• Run integration tests
• Run smoke tests
• Run tests for tools/

[datadog-datadog-prod-us1]

Datadog Report

Branch report: ncreated/fix/fix-browser-v5-events-parser
Commit report: 6f3aaf4

❄️ dd-sdk-ios: 0 Failed, 2 New Flaky, 2411 Passed, 0 Skipped, 5m 19.51s Wall Time

New Flaky Tests (2)

• testGivenCompositeDelegate_whenInterceptingRequests_itDetectFirstPartyHost - NetworkInstrumentationFeatureTests - Last Failure

  Expand for error

   Assertion Failure at NetworkInstrumentationFeatureTests.swift:568: XCTAssertTrue failed
  

• testWhenSendingTelemetryMessage_itForwardsToCore - TelemetryTests - Last Failure

  Expand for error

   Abort trap. Check error.crash_log for the full crash log.