Fixing Partition assignment (#287)

Author: RJ Lohan

python/rpdk/java/templates/generate/HandlerWrapper.java

@@ -3,6 +3,7 @@
 
 import com.amazonaws.AmazonServiceException;
 import software.amazon.awssdk.regions.PartitionMetadata;
+import software.amazon.awssdk.regions.Region;
 import software.amazon.cloudformation.Action;
 import software.amazon.cloudformation.exceptions.BaseHandlerException;
 import software.amazon.cloudformation.LambdaWrapper;
@@ -138,7 +139,7 @@ public Map<String, String> provideResourceDefinedTags(final {{ pojo_name}} resou
             .logicalResourceIdentifier(request.getRequestData().getLogicalResourceId())
             .nextToken(request.getNextToken())
             .region(request.getRegion())
-            .awsPartition(PartitionMetadata.of(request.getRegion()).name())
+            .awsPartition(PartitionMetadata.of(Region.of(request.getRegion())).id())
             .build();
     }