Fix yarn run build

yarn run build failed to run, due to following error:

    ERROR in sharetribe-flex-sdk-web.js from Terser
    Error: error:0308010C:digital envelope routines::unsupported

Read more here: webpack/webpack#14532

To fix the issue:

- Upgrade webpack to 4.47.0 (see: webpack/webpack#17628)
- Add `resolutions` block for terser-webpack-plugin until this PR is
  merged (webpack/webpack#17659)

package.json

@@ -54,7 +54,7 @@
     "jest": "^29.7.0",
     "open": "^7.0.2",
     "prettier": "^1.14.0",
-    "webpack": "^4.46.0",
+    "webpack": "^4.47.0",
     "webpack-cli": "^4.10.0"
   },
   "dependencies": {
@@ -65,7 +65,8 @@
     "transit-js": "^0.8.861"
   },
   "resolutions": {
-    "docpress/**/lodash": "^4.17.10"
+    "docpress/**/lodash": "^4.17.10",
+    "terser-webpack-plugin": "^4.2.3"
   },
   "babel": {
     "plugins": [