Update prettier requirement from ^2.0.5 to ^2.7.1 (#482)

Updates the requirements on [prettier](https://github.com/prettier/prettier) to permit the latest version.
- [Release notes](https://github.com/prettier/prettier/releases)
- [Changelog](https://github.com/prettier/prettier/blob/main/CHANGELOG.md)
- [Commits](https://github.com/prettier/prettier/compare/2.0.5...2.7.1)

---
updated-dependencies:
- dependency-name: prettier
  dependency-type: direct:development
...

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

package.json

@@ -19,7 +19,7 @@
 		"eslint-config-prettier": "^6.11.0",
 		"eslint-plugin-import": "^2.20.1",
 		"eslint-plugin-prettier": "^3.1.4",
-		"prettier": "^2.0.5",
+		"prettier": "^2.7.1",
 		"stylelint": "^13",
 		"stylelint-config-recommended": "^3.0.0",
 		"stylelint-no-browser-hacks": "^1.2.1"