[RUM-14431] [V3] Change Webview package's requiresMainQueueSetup return value to prevent deadlock

[cdn34dd]

What does this PR do?

Change requiresMainQueueSetup from YES to NO in RCTDatadogWebViewManager to prevent deadlock with React Native's Fabric animation system.

The issue occurs intermittently when lazy-loading the Webview module during navigation events. When the issue occurs the module would be kept waiting for the main thread indefinitely while the main thread was blocked on ComponentDescriptorRegistry's shared lock.

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests
• Make sure you discussed the feature or bugfix with the maintaining team in an Issue
• Make sure each commit and the PR mention the Issue number (cf the CONTRIBUTING doc)
• If this PR is auto-generated, please make sure also to manually update the code related to the change