chore(deps): update dependency tree-sitter-rust to v0.21.0

Author: renovate[bot]

package.json

@@ -86,7 +86,7 @@
     "tree-sitter-php": "0.20.0",
     "tree-sitter-python": "0.20.4",
     "tree-sitter-ruby": "0.19.0",
-    "tree-sitter-rust": "0.20.1",
+    "tree-sitter-rust": "0.21.0",
     "tree-sitter-typescript": "0.20.5"
   },
   "devDependencies": {