BAU: Bump @aws-sdk/client-dynamodb from 3.651.1 to 3.731.1

Bumps [@aws-sdk/client-dynamodb](https://github.com/aws/aws-sdk-js-v3/tree/HEAD/clients/client-dynamodb) from 3.651.1 to 3.731.1.
- [Release notes](https://github.com/aws/aws-sdk-js-v3/releases)
- [Changelog](https://github.com/aws/aws-sdk-js-v3/blob/main/clients/client-dynamodb/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-js-v3/commits/v3.731.1/clients/client-dynamodb)

---
updated-dependencies:
- dependency-name: "@aws-sdk/client-dynamodb"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -61,7 +61,7 @@
     "uglify-js": "3.19.3"
   },
   "dependencies": {
-    "@aws-sdk/client-dynamodb": "3.651.1",
+    "@aws-sdk/client-dynamodb": "3.731.1",
     "@govuk-one-login/di-ipv-cri-common-express": "8.1.0",
     "@govuk-one-login/frontend-analytics": "2.0.1",
     "@govuk-one-login/frontend-language-toggle": "1.1.0",