Fix typo in parameter (#19377)

Author: asashour

src/content/docs/r2/examples/aws/aws-sdk-java.mdx

@@ -17,7 +17,7 @@ To mitigate, users can use `2.29.52` or add the following to their S3Config:
 
 ```java
 this.requestChecksumCalculation = "when_required",
-this.esponseChecksumValidation = "when_required"
+this.responseChecksumValidation = "when_required"
 ```
 
 :::