chore(deps): update dependency pg to v8.20.0

Author: renovate[bot]

package.json

@@ -77,7 +77,7 @@
     "node-schedule": "2.1.1",
     "nodemailer": "7.0.12",
     "openpgp": "6.3.0",
-    "pg": "8.17.2",
+    "pg": "8.20.0",
     "pug": "3.0.3",
     "react": "^18.3.1",
     "react-ace": "10.1.0",