ci.yaml installed golang.org/x/lint/golint but never invoked it; golint has been deprecated and frozen since 2021. The CI Go version (1.24.2) also lagged the go.mod directive (1.25). Remove the dead step, align both workflows to Go 1.25, and bump the remaining actions/checkout@v3 usages to v4 (release.yaml was already on v4).
The release job ran .cross_compile.sh, which builds all 12 targets sequentially in a single runner. Split the build into a matrix so each GOOS/GOARCH pair builds concurrently on its own runner, then a dependent Release job collects the artifacts and publishes them in one release. Output filenames are unchanged.
