Fix class cast error in camel-aws2-s3

[cunningt]

Seeing this trying to run tests camel aws2 s3

[ERROR] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 3.083 s <<< FAILURE! -- in org.apache.camel.component.aws2.s3.S3PojoAsBodyTest
[ERROR] org.apache.camel.component.aws2.s3.S3PojoAsBodyTest.sendIn -- Time elapsed: 0.199 s <<< ERROR!
java.lang.ClassCastException: class software.amazon.awssdk.services.s3.model.ListObjectsRequest cannot be cast to class software.amazon.awssdk.services.s3.model.S3Object (software.amazon.awssdk.services.s3.model.ListObjectsRequest and software.amazon.awssdk.services.s3.model.S3Object are in unnamed module of loader 'app')
at org.apache.camel.component.aws2.s3.S3PojoAsBodyTest.sendIn(S3PojoAsBodyTest.java:68)