chore(deps): update dependency css-loader to v7

Author: renovate[bot]

package-lock.json

@@ -37,7 +37,7 @@
     "bi-app-sass": "1.1.0",
     "bourbon": "4.3.4",
     "browser-sync": "3.0.4",
-    "css-loader": "^6.0.0",
+    "css-loader": "^7.0.0",
     "del": "2.2.2",
     "eslint": "^8.35.0",
     "eslint-config-edx": "4.0.4",