[tracing] Migrate legacy async macros in webrtc

Migrating the following async event macros somewhat mechanically:
```
- TRACE_EVENT(_NESTABLE)?_ASYNC_BEGIN(_WITH_TIMESTAMP)?[012](<category_group>, <name>, <id>, ...)
-> TRACE_EVENT_BEGIN(<category_group>, <name>, <track>, ...)

- TRACE_EVENT(_NESTABLE)?_ASYNC_END(_WITH_TIMESTAMP)?[012](<category_group>, <name>, <id>, ...)
-> TRACE_EVENT_END(<category_group>, <track>, ...)

- TRACE_EVENT(_NESTABLE)?_ASYNC_INSTANT(_WITH_TIMESTAMP)?[012](<category_group>, <name>, <id>, ...)
-> TRACE_EVENT_INSTANT(<category_group>, <name>, <track>, ...)
```

Bug: chromium:432427382
Change-Id: I5d25d8dfd19613bcafa98c8d7a81a4050cd6534c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/435580
Reviewed-by: Åsa Persson <asapersson@webrtc.org>
Commit-Queue: Etienne Pierre-Doray <etiennep@chromium.org>
Reviewed-by: Henrik Andreassson <henrika@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#46896}