Bump @strapi/strapi from 4.5.2 to 4.5.4 in /playground

Bumps [@strapi/strapi](https://github.com/strapi/strapi) from 4.5.2 to 4.5.4.
- [Release notes](https://github.com/strapi/strapi/releases)
- [Commits](strapi/strapi@v4.5.2...v4.5.4)

---
updated-dependencies:
- dependency-name: "@strapi/strapi"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

playground/package.json

@@ -12,7 +12,7 @@
   "dependencies": {
     "@strapi/plugin-i18n": "^4.5.4",
     "@strapi/plugin-users-permissions": "^4.5.4",
-    "@strapi/strapi": "^4.5.2",
+    "@strapi/strapi": "^4.5.4",
     "@strapi/utils": "^4.4.3",
     "meilisearch": "^0.30.0",
     "sqlite3": "^5.1.4"