Bump ajv to 8.11.0

Author: prashantRaghu

package.json

@@ -116,7 +116,7 @@
     "openapi2postmanv2": "./bin/openapi2postmanv2.js"
   },
   "dependencies": {
-    "ajv": "8.5.0",
+    "ajv": "8.11.0",
     "ajv-draft-04": "1.0.0",
     "ajv-formats": "2.1.1",
     "async": "3.2.4",