🚀 Update dependencies and Go version to 1.26

[mkmccarty]

No description provided.

[Copilot]

Pull request overview

This PR updates the project’s Go toolchain target to Go 1.26 and refreshes a set of Go module dependencies, aligning local/Docker builds with the new version.

Changes:

• Bump go.mod to go 1.26 and update several direct/indirect dependencies.
• Update Docker/Docker Compose and Makefile defaults to build with Go 1.26.
• Refresh go.sum to match the updated module graph.

Reviewed changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
go.mod	Updates the Go language version to 1.26 and bumps module versions accordingly.
go.sum	Updates checksums to match dependency/version changes from go.mod.
Dockerfile	Updates the default Go base image version used for builds.
docker-compose.yml	Updates the default Go version passed as a build arg.
Makefile	Updates the Go version used for Docker build targets.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Bumping the go.mod go directive to 1.26 will make builds/tests fail anywhere that still installs Go 1.25.x (Go will error with “go.mod requires go >= 1.26”). The repo’s GitHub Actions CI workflow(s) are still pinned to Go 1.25.6, so they need to be updated to 1.26 (or to read from a single shared version source) to keep CI green.

Suggested change

	go 1.26
	go 1.25

[Copilot]

The comment says the compose build will “auto-use the Go version in go.mod”, but the actual value comes from the GO_VERSION env var defaulting to 1.26. This is easy to let drift from go.mod; either update the comment to match behavior or ensure there’s a single source of truth for the Go version used by Docker builds.