bump verb specs

Author: davehorton

package-lock.json

@@ -15,7 +15,7 @@
   },
   "license": "MIT",
   "dependencies": {
-    "@jambonz/verb-specifications": "^0.0.50",
+    "@jambonz/verb-specifications": "^0.0.51",
     "bent": "^7.3.12",
     "debug": "^4.3.4",
     "parseurl": "^1.3.3"