BREAKING CHANGE: Update dependency cosmiconfig to v7

Author: renovate-bot

package.json

@@ -31,7 +31,7 @@
     "cli-table": "0.3.1",
     "connect-history-api-fallback": "1.6.0",
     "copy-webpack-plugin": "5.1.2",
-    "cosmiconfig": "5.2.1",
+    "cosmiconfig": "7.0.0",
     "cross-spawn": "7.0.3",
     "css-loader": "4.3.0",
     "dotenv": "8.2.0",