chore(package): update @types/sinon to version 7.0.12

Author: greenkeeper[bot]

package.json

@@ -25,7 +25,7 @@
     "@types/lodash": "^4.14.121",
     "@types/react-dom": "^16.8.2",
     "@types/react-test-renderer": "^16.8.1",
-    "@types/sinon": "^7.0.6",
+    "@types/sinon": "^7.0.12",
     "@types/sinon-chai": "^3.2.2",
     "@types/webpack": "^4.4.24",
     "coveralls": "^3.0.3",