fix: upgrade aws-sdk from 2.1532.0 to 2.1545.0

Snyk has created this PR to upgrade aws-sdk from 2.1532.0 to 2.1545.0.

See this package in npm:
https://www.npmjs.com/package/aws-sdk

See this project in Snyk:
https://app.snyk.io/org/maidul98/project/35057e82-ed7d-4e19-ba4d-719a42135cd6?utm_source=github&utm_medium=referral&page=upgrade-pr

backend/package.json

@@ -90,7 +90,7 @@
     "@ucast/mongo2js": "^1.3.4",
     "ajv": "^8.12.0",
     "argon2": "^0.31.2",
-    "aws-sdk": "^2.1532.0",
+    "aws-sdk": "^2.1545.0",
     "axios": "^1.6.4",
     "axios-retry": "^4.0.0",
     "bcrypt": "^5.1.1",