Update dependency @material-ui/core to ^4.12.4

Signed-off-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

package-lock.json

@@ -59,11 +59,11 @@
   "peerDependencies": {
     "react": "^17.0.2",
     "react-dom": "^17.0.2",
-    "@material-ui/core": "^4.12.3",
+    "@material-ui/core": "^4.12.4",
     "lodash": "^4.17.21"
   },
   "dependencies": {
-    "@material-ui/core": "^4.12.3",
+    "@material-ui/core": "^4.12.4",
     "final-form": "^4.20.7",
     "lodash": "^4.17.21",
     "react": "^17.0.2",