Update dependency @easyops-cn/docusaurus-search-local to v0.50.0

Author: renovate[bot]

package.json

@@ -16,7 +16,7 @@
   "dependencies": {
     "@docusaurus/core": "2.0.0-beta.14",
     "@docusaurus/preset-classic": "2.0.0-beta.14",
-    "@easyops-cn/docusaurus-search-local": "0.21.4",
+    "@easyops-cn/docusaurus-search-local": "0.50.0",
     "@mdx-js/react": "1.6.22",
     "@svgr/webpack": "6.1.2",
     "clsx": "1.1.1",