Bump postcss-import from 14.1.0 to 15.0.0

Bumps [postcss-import](https://github.com/postcss/postcss-import) from 14.1.0 to 15.0.0.
- [Release notes](https://github.com/postcss/postcss-import/releases)
- [Changelog](https://github.com/postcss/postcss-import/blob/master/CHANGELOG.md)
- [Commits](postcss/postcss-import@14.1.0...15.0.0)

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

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

Author: dependabot[bot]

package-lock.json

@@ -33,7 +33,7 @@
     "postcss-css-variables": "^0.18.0",
     "postcss-custom-properties": "^12.1.8",
     "postcss-hash": "^3.0.0",
-    "postcss-import": "^14.1.0",
+    "postcss-import": "^15.0.0",
     "postcss-mixins": "^9.0.4",
     "postcss-nested": "^5.0.6",
     "postcss-nesting": "^10.1.10",