bugfix: improve shutdown and stop PoA sooner

[MitchTurner]

Linked Issues/PRs

Description

Because the services were being being shutdown in the same order they were started, the PoA service can be held up by earlier services. This means that our producers could be nominally "shut down" but the PoA service still runs a while. The old leader would still hold on to its lock, but it wouldn't be broadcasting blocks anymore.

The solution here is to shutdown all of the services in parallel, this way none of them is blocking the others.

The other part of the PR is taking care of the GraphQL which was the culprit for PoA never being shut down. We've added a timeout to force it to shutdown if it doesn't shut down gracefully.

Checklist

• Breaking changes are clearly marked as such in the PR description and changelog
• New behavior is reflected in tests
• The specification matches the implemented behavior (link update PR if changes are needed)

Before requesting review

• I have reviewed the code myself
• I have created follow-up issues caused by this PR and linked them here

After merging, notify other teams

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• Rust SDK
• Sway compiler
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• Someone else?

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PR Summary

Medium Risk
Changes node shutdown sequencing and introduces forced abort of the GraphQL server after a timeout, which could affect graceful shutdown semantics and in-flight requests. Dependency bumps/lockfile churn also carry some integration risk, especially around wasmtime/cranelift updates.

Overview
Ensures node shutdown does not block on slow sub-services by stopping all sub-services in parallel, improving PoA shutdown promptness and adding more detailed shutdown logging.

Hardens GraphQL shutdown by running the server in a spawned task and applying a 2s timeout; if graceful shutdown stalls, the task is aborted and the result is mapped consistently.

Improves test stability by waiting for node interfaces to become reachable before proceeding and retrying txpool inserts on transient ServiceCommunicationFailed errors.

Includes minor dependency/maintenance updates: adds a cargo-audit advisory ignore entry, bumps wasmtime to 43.0.2, and updates Cargo.lock plus some formatting-only Cargo.toml changes.

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[MitchTurner]

I'd prefer to use the actual service name here, but I don't want to touch to many pieces of code in a bugfix like this. This doesn't have access to RunnableService::NAME