Bump postcss from 8.4.39 to 8.4.45

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.39 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@8.4.39...8.4.45)

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

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

Author: dependabot[bot]

package.json

@@ -33,7 +33,7 @@
     "eslint": "^8.50.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-svelte3": "^4.0.0",
-    "postcss": "^8.4.39",
+    "postcss": "^8.4.45",
     "prettier": "^2.8.4",
     "prettier-plugin-svelte": "^2.10.1",
     "prisma": "^5.18.0",