Resolve Copilot comment

Author: NirajC-Microsoft

infra/scripts/validate_bicep_params.py

@@ -29,6 +29,7 @@
 from __future__ import annotations
 
 import argparse
+import html
 import json
 import re
 import sys
@@ -347,12 +348,7 @@ def print_report(results: list[ValidationResult], *, use_color: bool = True) ->
 
 def _html_escape(text: str) -> str:
     """Escape HTML special characters."""
-    return (
-        text.replace("&", "&")
-        .replace("<", "&lt;")
-        .replace(">", "&gt;")
-        .replace('"', "&quot;")
-    )
+    return html.escape(text, quote=True)
 
 
 def generate_html_report(