fix: upgrade markdown-it to 14.1.1 to remediate CVE-2026-2327 (#13782)

## Linear tickets
-
https://linear.app/chatwoot/issue/CW-6607/vanta-remediate-medium-vulnerabilities-identified-in-packages-are
-
https://linear.app/chatwoot/issue/CW-6612/vanta-remediate-medium-vulnerabilities-identified-in-packages-are

## Description

Upgrades markdown-it from 13.0.2 to 14.1.1 to remediate CVE-2026-2327

## Type of change

Please delete options that are not relevant.

- [ ] Bug fix (non-breaking change which fixes an issue)

## How Has This Been Tested?

- Sanity testing of golden flows via UI

## Checklist:

- [ ] My code follows the style guidelines of this project
- [ ] I have performed a self-review of my code
- [ ] I have commented on my code, particularly in hard-to-understand
areas
- [ ] I have made corresponding changes to the documentation
- [ ] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published in downstream
modules

package.json

@@ -79,7 +79,7 @@
     "json-logic-js": "^2.0.5",
     "lettersanitizer": "^1.0.6",
     "libphonenumber-js": "^1.11.9",
-    "markdown-it": "^13.0.2",
+    "markdown-it": "^14.1.1",
     "markdown-it-link-attributes": "^4.0.1",
     "md5": "^2.3.0",
     "mitt": "^3.0.1",