chore(deps): Bump async-nats from 0.42.0 to 0.43.1 (#23886)

Bumps [async-nats](https://github.com/nats-io/nats.rs) from 0.42.0 to 0.43.1.
- [Release notes](https://github.com/nats-io/nats.rs/releases)
- [Commits](https://github.com/nats-io/nats.rs/compare/async-nats/v0.42.0...async-nats/v0.43.1)

---
updated-dependencies:
- dependency-name: async-nats
  dependency-version: 0.43.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Pavlos Rontidis <pavlos.rontidis@gmail.com>