Update gotraceui to v0.3.0.

[darccio]

What does this PR do?

Upgrades gotraceui to v0.3.0, that supports Go 1.21 traces.

Motivation

Review and act on TODO comments as part of the cleanup for v2 release.

Reviewer's Checklist

• Changed code has unit tests for its functionality at or near 100% coverage.
• System-Tests covering this feature have been added and enabled with the va.b.c-dev version tag.
• There is a benchmark for any new code, or changes to existing code.
• If this interacts with the agent in a new way, a system test has been added.
• Add an appropriate team label so this PR gets put in the right place for the release notes.

For Datadog employees:

• If this PR touches code that handles credentials of any kind, such as Datadog API keys, I've requested a review from @DataDog/security-design-and-guidance.
• This PR doesn't touch any of that.

Unsure? Have a question? Request a review!

[pr-commenter]

Benchmarks

Benchmark execution time: 2023-12-19 16:45:43

Comparing candidate commit d48ce66 in PR branch dario.castane/AIT-9184/gotraceui-v0.3.0 with baseline commit 4ae528b in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 40 metrics, 1 unstable metrics.

[darccio]

Reverted and discarded. Reviewdog fails to run in this PR (example). I kind of reproduced locally running the lint job, but I have no simple way to debug:

act pull_request -e /tmp/pr-event.json -s GITHUB_TOKEN="$(gh auth token)" --container-architecture linux/amd64 --rm -j lint -W ./.github/workflows/unit-integration-tests.yml -P "APM Larger Runners"=catthehacker/ubuntu:act-22.04 --input github.head_ref=v2-dev --input github.base_ref=main --input ref=refs/pulls/2427/merge --input inputs.go-version=1.21

/tmp/pr-event.json looks like this:

{"number":2427}