Change plainTextItem to item in examples

Author: rishav-karanjit

Examples/runtimes/java/DynamoDbEncryption/src/main/java/software/amazon/cryptography/examples/GetEncryptedDataKeyDescriptionExample.java

@@ -49,7 +49,7 @@ public static void getEncryptedDataKeyDescription(
                 .DynamoDbEncryptionConfig(DynamoDbEncryptionConfig.builder().build())
                 .build();
         GetEncryptedDataKeyDescriptionUnion InputUnion = GetEncryptedDataKeyDescriptionUnion.builder()
-        .plaintextItem(returnedItem)
+        .item(returnedItem)
         .build();
         software.amazon.cryptography.dbencryptionsdk.dynamodb.model.GetEncryptedDataKeyDescriptionInput input = GetEncryptedDataKeyDescriptionInput.builder()
         .input(InputUnion)

Examples/runtimes/net/src/GetEncryptedDataKeyDescriptionExample.cs

@@ -39,7 +39,7 @@ public static async Task GetEncryptedDataKeyDescription()
         // "aws_dbe_head" attribute in the dynamoDB item. The part of the code where we send input as the header is commented.
         var returnedItem = getResponse.Item;
         GetEncryptedDataKeyDescriptionUnion InputUnion = new GetEncryptedDataKeyDescriptionUnion();
-        InputUnion.PlaintextItem = returnedItem;
+        InputUnion.Item = returnedItem;
 
         // The code below shows how we can send header as the input to the DynamoDB. This code is written to demo the 
         // alternative approach. So, it is commented.