Bump sinon from 8.1.0 to 8.1.1

Bumps [sinon](https://github.com/sinonjs/sinon) from 8.1.0 to 8.1.1.
- [Release notes](https://github.com/sinonjs/sinon/releases)
- [Changelog](https://github.com/sinonjs/sinon/blob/master/CHANGELOG.md)
- [Commits](sinonjs/sinon@v8.1.0...v8.1.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

package.json

@@ -49,7 +49,7 @@
     "rc-tools": "6.x",
     "react": "^16.0.0",
     "react-dom": "^16.0.0",
-    "sinon": "8.1.0",
+    "sinon": "8.1.1",
     "vinyl-fs": "^3.0.3"
   },
   "pre-commit": [