fix(lib-dynamodb): add util-dynamodb to dependencies (#2768)

Author: AllanZhengYP

Diff for: lib/lib-dynamodb/package.json

@@ -21,19 +21,18 @@
   },
   "license": "Apache-2.0",
   "dependencies": {
+    "@aws-sdk/util-dynamodb": "3.30.0",
     "tslib": "^2.3.0"
   },
   "peerDependencies": {
     "@aws-sdk/client-dynamodb": "^3.0.0",
     "@aws-sdk/smithy-client": "^3.0.0",
-    "@aws-sdk/types": "^3.0.0",
-    "@aws-sdk/util-dynamodb": "^3.0.0"
+    "@aws-sdk/types": "^3.0.0"
   },
   "devDependencies": {
     "@aws-sdk/client-dynamodb": "3.30.0",
     "@aws-sdk/smithy-client": "3.30.0",
     "@aws-sdk/types": "3.29.0",
-    "@aws-sdk/util-dynamodb": "3.30.0",
     "@types/jest": "^26.0.4",
     "@types/node": "^14.11.2",
     "jest": "^26.4.2",