Bump webpack-merge from 4.1.4 to 4.2.2

Bumps [webpack-merge](https://github.com/survivejs/webpack-merge) from 4.1.4 to 4.2.2.
- [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/v4.1.4...v4.2.2)

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

package-lock.json

@@ -6461,7 +6461,7 @@
       "dependencies": {
         "resolve": {
           "version": "1.1.7",
-          "resolved": "http://registry.npmjs.org/resolve/-/resolve-1.1.7.tgz",
+          "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.1.7.tgz",
           "integrity": "sha1-IDEU2CrSxe2ejgQRs5ModeiJ6Xs=",
           "dev": true
         }
@@ -25775,12 +25775,12 @@
       }
     },
     "webpack-merge": {
-      "version": "4.1.4",
-      "resolved": "https://registry.npmjs.org/webpack-merge/-/webpack-merge-4.1.4.tgz",
-      "integrity": "sha512-TmSe1HZKeOPey3oy1Ov2iS3guIZjWvMT2BBJDzzT5jScHTjVC3mpjJofgueEzaEd6ibhxRDD6MIblDr8tzh8iQ==",
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/webpack-merge/-/webpack-merge-4.2.2.tgz",
+      "integrity": "sha512-TUE1UGoTX2Cd42j3krGYqObZbOD+xF7u28WB7tfUordytSjbWTIjK/8V0amkBfTYN4/pB/GIDlJZZ657BGG19g==",
       "dev": true,
       "requires": {
-        "lodash": "^4.17.5"
+        "lodash": "^4.17.15"
       }
     },
     "webpack-sources": {

package.json

@@ -289,6 +289,6 @@
     "webpack-cli": "^3.3.10",
     "webpack-dev-server": "^3.10.1",
     "webpack-hot-middleware": "^2.25.0",
-    "webpack-merge": "^4.1.4"
+    "webpack-merge": "^4.2.2"
   }
 }