Bump Go and go mods

[nikola-jokic]

No description provided.

[Copilot]

Pull request overview

Updates the module’s declared Go toolchain version and refreshes Go module dependencies to match the new baseline.

Changes:

• Bump go directive from 1.25.3 to 1.26.2.
• Update several direct/indirect dependencies (notably golang.org/x/*, go.opentelemetry.io/*, Docker-related modules).
• Regenerate go.sum to reflect the updated module graph.

Reviewed changes

Copilot reviewed 1 out of 2 changed files in this pull request and generated 1 comment.

File	Description
go.mod	Bumps Go version and updates required module versions.
go.sum	Updates module checksums for the dependency version changes.

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[Copilot]

Bumping the go directive to 1.26.2 leaves other repo-configured Go version pins out of sync (e.g., the devcontainer image is mcr.microsoft.com/devcontainers/go:1.25-bookworm, and README still states Go 1.25+). Please update those references so local dev + documented requirements match the new minimum Go version.