chore: Bump comet to v0.40.0

[Eric-Warehime]

Bumps the comet dep.

[greptile-apps]

Greptile Summary

Updates the CometBFT dependency and its resolved transitive dependency set.

• Replaces the CometBFT v0.39.0 release candidate pseudo-version with v0.40.0.
• Refreshes indirect compression, Prometheus, QUIC, WebTransport, and networking dependencies.
• Updates module checksums to match the new dependency graph.

Confidence Score: 5/5

The dependency update appears safe to merge, with no concrete changed-code defects identified.

The reported security leads either target fixed CometBFT functionality that this KMS does not invoke or concern unchanged dependencies with no newly exposed repository call path.

Important Files Changed

Filename	Overview
go.mod	Bumps CometBFT to v0.40.0 and updates the associated indirect dependency versions; no concrete changed-code failure was identified.
go.sum	Refreshes checksums consistently with the dependency updates in go.mod.

_{Reviews (1): Last reviewed commit: "Bump comet to v0.40.0" | Re-trigger Greptile}