update rum

rum/package.json

@@ -0,0 +1,14 @@
+{
+  "name": "go-otel-rum",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "typecheck": "tsc --noEmit",
+    "build": "npm run typecheck && node build.mjs",
+    "test": "npm run build && node --test ../scripts/otel-rum.test.mjs"
+  },
+  "devDependencies": {
+    "esbuild": "^0.28.1",
+    "typescript": "^5.9.3"
+  }
+}