chore(deps-dev): bump postcss from 8.4.43 to 8.4.45 in the postcss group

Bumps the postcss group with 1 update: [postcss](https://github.com/postcss/postcss).


Updates `postcss` from 8.4.43 to 8.4.45
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.4.43...8.4.45)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: postcss
...

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

package.json

@@ -81,7 +81,7 @@
     "lockfile-lint": "^4.14.0",
     "nodemon": "^3.1.4",
     "npm-run-all": "^4.1.5",
-    "postcss": "^8.4.43",
+    "postcss": "^8.4.45",
     "postcss-cli": "^11.0.0",
     "prettier": "^3.3.3",
     "prettier-plugin-astro": "^0.14.1",