chore: update dependency @types/react-dom to ^17.0.18

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

Author: renovate[bot]

packages/discussion-board-management-frontend/package.json

@@ -14,7 +14,7 @@
     "@types/jest": "^26.0.23",
     "@types/node": "^12.20.24",
     "@types/react": "^17.0.20",
-    "@types/react-dom": "^17.0.8",
+    "@types/react-dom": "^17.0.18",
     "carbon-components": "^10.38.0",
     "carbon-components-react": "^7.38.0",
     "carbon-icons": "^7.0.7",

packages/event-management-frontend/package.json

@@ -14,7 +14,7 @@
     "@types/jest": "^26.0.23",
     "@types/node": "^12.20.24",
     "@types/react": "^17.0.20",
-    "@types/react-dom": "^17.0.8",
+    "@types/react-dom": "^17.0.18",
     "carbon-components": "^10.38.0",
     "carbon-components-react": "^7.38.0",
     "carbon-icons": "^7.0.7",