Bump webpack-merge from 5.0.9 to 5.1.1

Bumps [webpack-merge](https://github.com/survivejs/webpack-merge) from 5.0.9 to 5.1.1.
- [Release notes](https://github.com/survivejs/webpack-merge/releases)
- [Changelog](https://github.com/survivejs/webpack-merge/blob/master/CHANGELOG.md)
- [Commits](https://github.com/survivejs/webpack-merge/compare/v5.0.9...v5.1.1)

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

package-lock.json

@@ -10234,9 +10234,9 @@
       }
     },
     "webpack-merge": {
-      "version": "5.0.9",
-      "resolved": "https://registry.npmjs.org/webpack-merge/-/webpack-merge-5.0.9.tgz",
-      "integrity": "sha512-P4teh6O26xIDPugOGX61wPxaeP918QOMjmzhu54zTVcLtOS28ffPWtnv+ilt3wscwBUCL2WNMnh97XkrKqt9Fw==",
+      "version": "5.1.1",
+      "resolved": "https://registry.npmjs.org/webpack-merge/-/webpack-merge-5.1.1.tgz",
+      "integrity": "sha512-UhIkHAVqeG9EqFfYo7dRELrVfH6HYaOTYM7ssKCwfIIHYnWepGVOFp1E166GwgPGFqV6M68UgRiKOERjVOKIXA==",
       "dev": true,
       "requires": {
         "clone-deep": "^4.0.1",

package.json

@@ -124,7 +124,7 @@
     "vue-template-compiler": "^2.6.11",
     "webpack": "^4.44.1",
     "webpack-cli": "^3.3.12",
-    "webpack-merge": "^5.0.9",
+    "webpack-merge": "^5.1.1",
     "webpack-node-externals": "^2.5.1"
   },
   "browserslist": [