fix(common): CHECKOUT-000 upgrade classnames from 2.3.1 to 2.3.2 (#1063)

Snyk has created this PR to upgrade classnames from 2.3.1 to 2.3.2.

See this package in npm:
https://www.npmjs.com/package/classnames

See this project in Snyk:
https://app.snyk.io/org/bigcommerce/project/1a0b4a5a-e0ef-44f6-8a10-bbb23cf449a9?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -60,7 +60,7 @@
     "@types/yup": "^0.26.3",
     "@welldone-software/why-did-you-render": "^3.2.3",
     "card-validator": "^6.1.0",
-    "classnames": "^2.2.6",
+    "classnames": "^2.3.2",
     "credit-card-type": "^8.0.0",
     "dompurify": "^2.4.0",
     "downshift": "^3.2.10",