Fix typo in Javadoc snippet of AsyncRequestBody.forBlockingOutputStream (#6135)

Co-authored-by: Dongie Agnir <261310+dagnir@users.noreply.github.com>

Author: KENNYSOFT

.changes/next-release/documentation-AWSSDKforJavav2-a9ebe47.json

@@ -0,0 +1,6 @@
+{
+    "type": "documentation",
+    "category": "AWS SDK for Java v2",
+    "contributor": "KENNYSOFT",
+    "description": "Fix typo in Javadoc snippet of `AsyncRequestBody.forBlockingOutputStream`"
+}

core/sdk-core/src/main/java/software/amazon/awssdk/core/async/AsyncRequestBody.java

@@ -465,7 +465,7 @@ static BlockingInputStreamAsyncRequestBody forBlockingInputStream(Long contentLe
      *     long lengthOfDataToSend = dataToSend.length();
      *
      *     // Start the operation
-     *     BlockingInputStreamAsyncRequestBody body =
+     *     BlockingOutputStreamAsyncRequestBody body =
      *         AsyncRequestBody.forBlockingOutputStream(lengthOfDataToSend);
      *     CompletableFuture<PutObjectResponse> responseFuture =
      *         s3.putObject(r -> r.bucket("bucketName").key("key"), body);