fix(deps): update middy-js monorepo to v6

Author: renovate[bot]

package-lock.json

@@ -31,8 +31,8 @@
     "@aws-sdk/client-comprehend": "3.879.0",
     "@aws-sdk/client-ssm": "3.879.0",
     "@azure/openai": "1.0.0-beta.13",
-    "@middy/core": "3.6.2",
-    "@middy/http-json-body-parser": "3.6.2",
+    "@middy/core": "6.4.5",
+    "@middy/http-json-body-parser": "6.4.5",
     "aws-cdk-lib": "2.213.0",
     "aws-sdk": "2.1692.0",
     "aws-sdk-client-mock": "4.1.0",