Update dependency classnames to v2.3.1

Author: renovate-bot

package-lock.json

@@ -34,13 +34,13 @@
     "@snowcoders/react-unstyled-button": "1.2.4",
     "@snowcoders/sortier": "3.3.0",
     "@types/chai": "4.2.18",
-    "@types/classnames": "2.2.11",
+    "@types/classnames": "2.3.0",
     "@types/enzyme": "3.10.8",
     "@types/mocha": "7.0.2",
     "@types/react": "16.9.47",
     "@types/sinon": "10.0.0",
     "chai": "4.3.4",
-    "classnames": "2.2.6",
+    "classnames": "2.3.1",
     "enzyme": "3.11.0",
     "enzyme-adapter-react-16": "1.15.6",
     "husky": "6.0.0",