fix(deps): update dependency postcss-loader to v8.2.1 (#647)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -18,7 +18,7 @@
     "node-sass": "9.0.0",
     "jquery": "3.7.1",
     "jquery-colorbox": "1.6.4",
-    "postcss-loader": "8.1.1",
+    "postcss-loader": "8.2.1",
     "roboto-fontface": "0.10.0",
     "sass-loader": "16.0.7",
     "sass-planifolia": "0.6.0",