build(deps-dev): bump sinon from 3.1.0 to 7.5.0

Bumps [sinon](https://github.com/sinonjs/sinon) from 3.1.0 to 7.5.0.
- [Release notes](https://github.com/sinonjs/sinon/releases)
- [Changelog](https://github.com/sinonjs/sinon/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sinonjs/sinon/commits)

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

package.json

@@ -46,7 +46,7 @@
     "grunt-jscs": "^3.0.1",
     "mkdirp": "^0.5.1",
     "nyc": "^14.1.1",
-    "sinon": "^3.1.0"
+    "sinon": "^7.5.0"
   },
   "dependencies": {
     "async": "^3.1.0",