build: Bump go version

[PossibleLlama]

Update to go25

[Copilot]

Pull request overview

This PR attempts to bump the Go version from 1.24 to 1.25 across the project configuration files. However, there is a critical issue: Go 1.25 does not exist as a valid release. As of January 2025, the latest stable Go version was in the 1.23.x series, and neither Go 1.24 nor Go 1.25 have been released.

Key Changes

• Update go.mod to specify Go 1.25 (removing the previous 1.24.2 and toolchain directives)
• Update devcontainer.json to use Go 1.25

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
go.mod	Updates the Go version directive from 1.24.2 to 1.25 and removes the toolchain directive
.devcontainer/devcontainer.json	Updates the devcontainer Go feature version from 1.24 to 1.25

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[PossibleLlama]

However, there is a critical issue: Go 1.25 does not exist as a valid release. As of January 2025, the latest stable Go version was in the 1.23.x series, and neither Go 1.24 nor Go 1.25 have been released.

As of January 2025 that might be correct, but this isn't being raised in January so it's not relevant.
1.25 got released in August 2025.