Update dependency pangu to v7.2.1

Author: renovate[bot]

package.json

@@ -32,7 +32,7 @@
     "medium-zoom": "1.1.0",
     "mermaid": "11.10.1",
     "pace-js": "1.2.4",
-    "pangu": "7.2.0",
+    "pangu": "7.2.1",
     "pdfobject": "2.3.1",
     "prism-themes": "1.9.0",
     "prismjs": "1.30.0",