chore(deps): update dependency react to v18

Author: renovate-bot

packages/demo-app/package.json

@@ -16,6 +16,6 @@
   "devDependencies": {
     "@sourcegraph/eslint-plugin-sourcegraph": "1.0.0",
     "@types/react": "18.0.0",
-    "react": "^17.0.2"
+    "react": "^18.0.0"
   }
 }

yarn.lock

@@ -6567,13 +6567,12 @@ react-is@^17.0.1:
   resolved "https://registry.yarnpkg.com/react-is/-/react-is-17.0.2.tgz#e691d4a8e9c789365655539ab372762b0efb54f0"
   integrity sha512-w2GsyukL62IJnlaff/nRegPQR94C/XXamvMWmSHRJ4y7Ts/4ocGRmTHvOs8PSE6pB3dWOrD/nueuU5sduBsQ4w==
 
-react@^17.0.2:
-  version "17.0.2"
-  resolved "https://registry.yarnpkg.com/react/-/react-17.0.2.tgz#d0b5cc516d29eb3eee383f75b62864cfb6800037"
-  integrity sha512-gnhPt75i/dq/z3/6q/0asP78D0u592D5L1pd7M8P+dck6Fu/jJeL6iVVK23fptSUZj8Vjf++7wXA8UNclGQcbA==
+react@^18.0.0:
+  version "18.0.0"
+  resolved "https://registry.yarnpkg.com/react/-/react-18.0.0.tgz#b468736d1f4a5891f38585ba8e8fb29f91c3cb96"
+  integrity sha512-x+VL6wbT4JRVPm7EGxXhZ8w8LTROaxPXOqhlGyVSrv0sB1jkyFGgXxJ8LVoPRLvPR6/CIZGFmfzqUa2NYeMr2A==
   dependencies:
     loose-envify "^1.1.0"
-    object-assign "^4.1.1"
 
 read-cmd-shim@^2.0.0:
   version "2.0.0"