tstest/integration/vms: use hujson.Standardize instead of hujson.Unmarshal (#4520)

The hujson package transition to just being a pure AST
parser and formatter for HuJSON and not an unmarshaler.

Thus, parse HuJSON as such, convert it to JSON,
and then use the standard JSON unmarshaler.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>

tstest/integration/vms/distros.go

@@ -6,6 +6,7 @@ package vms
 
 import (
 	_ "embed"
+	"encoding/json"
 	"log"
 
 	"github.com/tailscale/hujson"
@@ -53,10 +54,12 @@ var distroData string
 
 var Distros []Distro = func() []Distro {
 	var result []Distro
-	err := hujson.Unmarshal([]byte(distroData), &result)
+	b, err := hujson.Standardize([]byte(distroData))
 	if err != nil {
 		log.Fatalf("error decoding distros: %v", err)
 	}
-
+	if err := json.Unmarshal(b, &result); err != nil {
+		log.Fatalf("error decoding distros: %v", err)
+	}
 	return result
 }()