Update all examples

[Dwij1704]

IMPORTANT: Open a PR basing your branch off redesign to merge onto redesign

[Dwij1704]

• Update Crew Ai examples as ToolEvent no longer exists
• Update Async example for Anthropic

@the-praxs and I discussed the issue with Crew Ai, and we identified a few possible approaches. One option is to fork CrewAI, remove the listener, and test it. Currently, CrewAI considers v3, which is causing this issue. By completely removing the listener, we can check whether our instrumentation works as expected.

[the-praxs]

@Dwij1704 update this issue to reflect the work you had to do

[Dwij1704]

Progress has been made on example, with multiple instrumentation updates now linked to relevant pull requests. Each PR includes refactoring, example additions, and alignment with the new Semantic Convention structure.