devel/go-tools: update to 0.50.0
Changelog: https://github.com/golang/tools/compare/v0.49.0...v0.50.0
Selected upstream changes:
- internal/stdlib: update stdlib index for Go 1.27 Release Candidate 3
- cmd/goimports: use filepath.WalkDir instead of filepath.Walk
- go.mod: update golang.org/x dependencies
Event: EuroBSDcon Devsummit 2026