chore(deps-dev): bump webpack-cli from 3.3.3 to 3.3.4 (#296)

Bumps [webpack-cli](https://github.com/webpack/webpack-cli) from 3.3.3 to 3.3.4.
- [Release notes](https://github.com/webpack/webpack-cli/releases)
- [Changelog](https://github.com/webpack/webpack-cli/blob/master/CHANGELOG.md)
- [Commits](https://github.com/webpack/webpack-cli/compare/3.3.3...v3.3.4)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -194,7 +194,7 @@
 		"typescript": "^3.5.1",
 		"vscode": "^1.1.34",
 		"webpack": "^4.33.0",
-		"webpack-cli": "^3.3.3"
+		"webpack-cli": "^3.3.4"
 	},
 	"engines": {
 		"vscode": "^1.31.0"

yarn.lock

@@ -3919,10 +3919,10 @@ watchpack@^1.5.0:
     graceful-fs "^4.1.2"
     neo-async "^2.5.0"
 
-webpack-cli@^3.3.3:
-  version "3.3.3"
-  resolved "https://registry.yarnpkg.com/webpack-cli/-/webpack-cli-3.3.3.tgz#8b7587dee369a838eb4722f6cfa711c779011e5f"
-  integrity sha512-/qBxTvsxZ7bIFQtSa08QRY5BZuiJb27cbJM/nzmgXg9NEaudP20D7BruKKIuWfABqWoMEJQcNYYq/OxxSbPHlg==
+webpack-cli@^3.3.4:
+  version "3.3.4"
+  resolved "https://registry.yarnpkg.com/webpack-cli/-/webpack-cli-3.3.4.tgz#de27e281c48a897b8c219cb093e261d5f6afe44a"
+  integrity sha512-ubJGQEKMtBSpT+LiL5hXvn2GIOWiRWItR1DGUqJRhwRBeGhpRXjvF5f0erqdRJLErkfqS5/Ldkkedh4AL5Q1ZQ==
   dependencies:
     chalk "^2.4.1"
     cross-spawn "^6.0.5"