fix(deps): update dependency mermaid to v10.9.4 [security]

Author: renovate[bot]

package.json

@@ -29,7 +29,7 @@
     "flowchart.ts": "3.0.0",
     "hls.js": "1.5.8",
     "katex": "0.16.10",
-    "mermaid": "10.9.1",
+    "mermaid": "10.9.4",
     "mpegts.js": "1.7.3",
     "plyr": "3.7.8",
     "reveal.js": "5.1.0",