feat: upgrade webpack from 4.47.0 to 5.96.1

Snyk has created this PR to upgrade webpack from 4.47.0 to 5.96.1.

See this package in npm:
webpack

See this project in Snyk:
https://app.snyk.io/org/laurry-gee/project/a6e4fc20-4cd3-438e-a2f5-854ca4bf778a?utm_source=github&utm_medium=referral&page=upgrade-pr

templates/experimental/worker-cobol/package.json

@@ -11,7 +11,7 @@
 	"devDependencies": {
 		"copy-webpack-plugin": "^5.1.1",
 		"text-encoding": "^0.7.0",
-		"webpack": "^4.42.1",
+		"webpack": "^5.96.1",
 		"webpack-cli": "^4.9.0",
 		"wrangler": "^2.0.0"
 	}