Register the replay of issue 305, run in the catalogue module it lives in (hq ADR 0237)

A catalogue module is a Go module of its own, so the prover runs a replay
in the directory its register entry names. R305 fails on the commit before
the fix and passes on it.

replays/cmd/prove/main.go

@@ -128,11 +128,11 @@ func run(r replays.Replay, repos, at string, fixed bool) (string, string) {
 			return verdictOf(string(out), err, false)
 		}
 		mode := "-mod=vendor"
-		if _, err := os.Stat(filepath.Join(tree, "vendor")); err != nil {
+		if _, err := os.Stat(filepath.Join(tree, r.Module, "vendor")); err != nil {
 			mode = "-mod=mod"
 		}
 		cmd := exec.CommandContext(ctx, "go", "test", "-count=1", "-run", "^"+r.Test, r.Package)
-		cmd.Dir = tree
+		cmd.Dir = filepath.Join(tree, r.Module)
 		cmd.Env = append(os.Environ(), "GOFLAGS="+mode, "GOPRIVATE=git.novox.be")
 		out, err := cmd.CombinedOutput()
 		return verdictOf(string(out), err, r.Kind == replays.Gate)