fix: upgrade casbin from 5.30.0 to 5.32.0

Snyk has created this PR to upgrade casbin from 5.30.0 to 5.32.0.

See this package in npm:
casbin

See this project in Snyk:
https://app.snyk.io/org/ashishkaushik/project/831f9f25-9317-4b52-8abd-f618a4ee8e6b?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -48,7 +48,7 @@
   ],
   "dependencies": {
     "@loopback/core": "^6.0.2",
-    "casbin": "^5.28.0",
+    "casbin": "^5.32.0",
     "casbin-pg-adapter": "^1.4.0",
     "lodash": "^4.17.21"
   },