chore(deps): update dependency webpack-dev-middleware to ^3.7.1 (#2237)

Author: renovate[bot]

package-lock.json

@@ -65,7 +65,7 @@
     "strip-ansi": "^3.0.1",
     "supports-color": "^6.1.0",
     "url": "^0.11.0",
-    "webpack-dev-middleware": "^3.7.0",
+    "webpack-dev-middleware": "^3.7.1",
     "webpack-log": "^2.0.0",
     "ws": "^6.2.1",
     "yargs": "12.0.5"