fix: upgrade @growthbook/growthbook-react from 0.20.0 to 0.21.0 (#1056)

Snyk has created this PR to upgrade @growthbook/growthbook-react from 0.20.0 to 0.21.0.

See this package in npm:
https://www.npmjs.com/package/@growthbook/growthbook-react

See this project in Snyk:
https://app.snyk.io/org/k2xl/project/cf09253a-8e4c-4f7f-b75f-a1763e5c78eb?utm_source=github&utm_medium=referral&page=upgrade-pr

Co-authored-by: snyk-bot <snyk-bot@snyk.io>

package.json

@@ -8,7 +8,7 @@
   "dependencies": {
     "@aws-sdk/client-ses": "^3.465.0",
     "@aws-sdk/credential-provider-node": "^3.465.0",
-    "@growthbook/growthbook-react": "^0.20.0",
+    "@growthbook/growthbook-react": "^0.21.0",
     "@headlessui/react": "^1.7.17",
     "@headlessui/tailwindcss": "^0.2.0",
     "@newrelic/next": "^0.7.0",