Bump open-props from 1.5.8 to 1.6.21

Bumps [open-props](https://github.com/argyleink/open-props) from 1.5.8 to 1.6.21.
- [Release notes](https://github.com/argyleink/open-props/releases)
- [Commits](https://github.com/argyleink/open-props/commits)

---
updated-dependencies:
- dependency-name: open-props
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

apps/website/package.json

@@ -24,7 +24,7 @@
 		"@types/rss": "^0.0.30",
 		"autoprefixer": "^10.4.18",
 		"fathom-client": "^3.5.0",
-		"open-props": "^1.5.8",
+		"open-props": "^1.6.21",
 		"postcss": "^8.4.14",
 		"postcss-jit-props": "^1.0.13",
 		"rss": "^1.2.2",