build(deps): bump @aws-sdk/client-s3 from 3.859.0 to 3.864.0 in /backend (#8823)

Bumps [@aws-sdk/client-s3](https://github.com/aws/aws-sdk-js-v3/tree/HEAD/clients/client-s3) from 3.859.0 to 3.864.0.
- [Release notes](https://github.com/aws/aws-sdk-js-v3/releases)
- [Changelog](https://github.com/aws/aws-sdk-js-v3/blob/main/clients/client-s3/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-js-v3/commits/v3.864.0/clients/client-s3)

---
updated-dependencies:
- dependency-name: "@aws-sdk/client-s3"
  dependency-version: 3.864.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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backend/package.json

@@ -28,7 +28,7 @@
     "prod:db:data:categories": "node build/src/db/categories.js"
   },
   "dependencies": {
-    "@aws-sdk/client-s3": "^3.859.0",
+    "@aws-sdk/client-s3": "^3.872.0",
     "@aws-sdk/lib-storage": "^3.850.0",
     "@sentry/node": "^5.15.4",
     "@types/mime-types": "^3.0.1",