chore(deps): bump async-nats to v0.38

[pront]

Summary

Bump to the latest version.
Ideally we want to enable the fips feature but it's not trivial: #21504

Change Type

• Bug fix
• New feature
• Non-functional (chore, refactoring, docs)
• Performance

Is this a breaking change?

• Yes
• No

How did you test this PR?

Does this PR include user facing changes?

• Yes. Please add a changelog fragment based on our guidelines.
• No. A maintainer will apply the "no-changelog" label to this PR.

Checklist

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References

[datadog-vectordotdev]

Datadog Report

Branch report: pront/bump-nats-no-fips
Commit report: 98f1d4d
Test service: vector

✅ 0 Failed, 7 Passed, 0 Skipped, 25.43s Total Time

[bfung]

Pre-approved, pending test suite passes.

Taking a look at the release notes, it looks like async-nats has breaking changes between 0.33.0 to 0.38.0, but will rely on test suite to catch those.