fix: mermaid rendering broken after rehype-pretty-code bump (closes #638)

package.json

@@ -66,7 +66,7 @@
     "rehype-autolink-headings": "^7.1.0",
     "rehype-katex": "^7.0.0",
     "rehype-mathjax": "^5.0.0",
-    "rehype-pretty-code": "^0.12.1",
+    "rehype-pretty-code": "^0.12.2",
     "rehype-raw": "^7.0.0",
     "rehype-slug": "^6.0.0",
     "remark": "^15.0.1",
@@ -79,7 +79,7 @@
     "remark-smartypants": "^2.0.0",
     "rimraf": "^5.0.5",
     "serve-handler": "^6.1.5",
-    "shikiji": "^0.8.7",
+    "shikiji": "^0.9.9",
     "source-map-support": "^0.5.21",
     "to-vfile": "^8.0.0",
     "toml": "^3.0.0",