Bump AWSSDK.DynamoDBv2 from 4.0.2.2 to 4.0.3.1

---
updated-dependencies:
- dependency-name: AWSSDK.DynamoDBv2
  dependency-version: 4.0.3.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

src/DynamoDBGenerator/DynamoDBGenerator.csproj

@@ -18,6 +18,6 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="AWSSDK.DynamoDBv2" Version="4.0.2.2" />
+        <PackageReference Include="AWSSDK.DynamoDBv2" Version="4.0.3.1" />
     </ItemGroup>
 </Project>