chore(package): update size-limit to version 0.21.1

Author: greenkeeper[bot]

package.json

@@ -64,7 +64,7 @@
  "react": "^16.6.0",
  "react-dom": "^16.6.0",
  "react-test-renderer": "^16.4.0",
- "size-limit": "^0.19.0"
+ "size-limit": "^0.21.1"
  },
  "homepage": "https://github.com/theKashey/react-memoize#readme",
  "dependencies": {