chore(deps): update dependency webpack to v4.47.0

| datasource | package | from   | to     |
| ---------- | ------- | ------ | ------ |
| npm        | webpack | 4.46.0 | 4.47.0 |

Author: renovate[bot]

package.json

@@ -36,7 +36,7 @@
     "styled-components": "4.4.1",
     "ts-node": "8.10.2",
     "typescript": "3.9.10",
-    "webpack": "4.46.0",
+    "webpack": "4.47.0",
     "webpack-cli": "3.3.12",
     "webpack-dev-server": "3.11.3"
   },