build(deps): bump polished from 4.1.1 to 4.1.3 in /docs (#2028)

Bumps [polished](https://github.com/styled-components/polished) from 4.1.1 to 4.1.3.
- [Release notes](https://github.com/styled-components/polished/releases)
- [Commits](styled-components/polished@v4.1.1...v4.1.3)

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

docs/package-lock.json

@@ -37,7 +37,7 @@
     "gatsby-transformer-remark": "^2.16.1",
     "gatsby-transformer-sharp": "^2.12.1",
     "gatsby-transformer-yaml": "^2.11.0",
-    "polished": "^4.1.1",
+    "polished": "^4.1.3",
     "prism-react-renderer": "^1.2.0",
     "prop-types": "^15.7.2",
     "puppeteer": "^8.0.0",