10671884d2
The packer-built almalinux9-gobuilder image is being retired. Switch test and pre-commit steps to artifactapi docker-internal/gobuilder 0.1.2-alma9, which trusts the estate CA and ships go-cache-plugin baked in on PATH. - Point test/pre-commit steps at the new image - Drop the curl/sha256sum bootstrap for go-cache-plugin; set GOCACHEPROG directly as a static env var since the binary is always present now - Best-effort S3 cache behaviour is unchanged: verified go build/test still succeed with unreachable/invalid S3 credentials, since the plugin itself degrades to cache misses at runtime