fix(deps): update dependency postcss to ^8.4.49

Signed-off-by: Renovate Bot <[email protected]>

Author: renovate[bot]

packages/stylelint-config/package.json

@@ -211,7 +211,7 @@
         "vitest": "^3.2.4"
     },
     "peerDependencies": {
-        "postcss": "^8.4.18",
+        "postcss": "^8.4.49",
         "stylelint": "^15.11.0 || 16.x"
     },
     "engines": {