Bump postcss-import from 15.1.0 to 16.0.0

Bumps [postcss-import](https://github.com/postcss/postcss-import) from 15.1.0 to 16.0.0.
- [Release notes](https://github.com/postcss/postcss-import/releases)
- [Changelog](https://github.com/postcss/postcss-import/blob/master/CHANGELOG.md)
- [Commits](postcss/postcss-import@15.1.0...16.0.0)

---
updated-dependencies:
- dependency-name: postcss-import
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

package.json

@@ -53,7 +53,7 @@
 		"postcss": "8.4.32",
 		"postcss-combine-duplicated-selectors": "10.0.3",
 		"postcss-combine-media-query": "1.0.1",
-		"postcss-import": "15.1.0",
+		"postcss-import": "16.0.0",
 		"postcss-reporter": "7.0.5",
 		"postcss-url": "10.1.3",
 		"sst": "rc",