chore(deps): update dependency flexsearch to v0.8.212

Author: renovate[bot]

packages/theme-default/package.json

@@ -43,7 +43,7 @@
     "body-scroll-lock": "4.0.0-beta.0",
     "clsx": "2.1.1",
     "copy-to-clipboard": "^3.3.3",
-    "flexsearch": "0.7.43",
+    "flexsearch": "0.8.212",
     "github-slugger": "^2.0.0",
     "hast-util-to-jsx-runtime": "^2.3.6",
     "lodash-es": "^4.17.21",