Miguel 884512b9e4 [fuchsia] Update Inspect library usage (flutter/engine#50467)
The new Inspect library uses InspectSink as described in
[RFC-168](https://fuchsia.dev/fuchsia-src/contribute/governance/rfcs/0168_exposing_inspect_through_inspectsink?hl=en).

Additionally it's using the new CPP bindings instead of the deprecated
HLCPP bindings.

Bug: https://g-issues.fuchsia.dev/issues/320785253

I've verified on a relevant Fuchsia build that the Flutter runner
continues to correctly publish Inspect after this change.

## Pre-launch Checklist

- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide] and the [C++,
Objective-C, Java style guides].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] I added new tests to check the change I am making or feature I am
adding, or the PR is [test-exempt]. See [testing the engine] for
instructions on writing and running engine tests.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I signed the [CLA].
- [x] All existing and new tests are passing.
2024-02-12 17:42:16 +00:00
..