fix: upgrade pdfkit from 0.11.0 to 0.15.0

Snyk has created this PR to upgrade pdfkit from 0.11.0 to 0.15.0.

See this package in npm:
pdfkit

See this project in Snyk:
https://app.snyk.io/org/ramireddy19971/project/675713a0-b6e2-4f42-9bc9-e0bf95f292bc?utm_source=github&utm_medium=referral&page=upgrade-pr

package.json

@@ -163,7 +163,7 @@
     "notevil": "^1.3.3",
     "on-finished": "^2.3.0",
     "otplib": "^12.0.1",
-    "pdfkit": "^0.11.0",
+    "pdfkit": "^0.15.0",
     "portscanner": "^2.2.0",
     "prom-client": "^14.1.0",
     "pug": "^3.0.0",