[FLINK-17010] Remove --quiet from s3 get operation

The reason this failed with --quiet is that the test redirects stdout to
get the sorted results:

get_complete_result > "${TEST_DATA_DIR}/complete_result"

5f2f7d6 removed the --quiet parameter
from the s3 fetch command, which changed what is printed to stdout. The
s3 command is printing which file it is downloading and this log message
also ends up in the "result" output that is being sorted and checked.

flink-end-to-end-tests/test-scripts/common_s3_operations.sh

@@ -100,7 +100,7 @@ function s3_get_by_full_path_and_filename_prefix() {
     args="$args --recursive"
   fi
   local relative_dir=${1#$TEST_INFRA_DIR}
-  aws_cli s3 cp "s3://$IT_CASE_S3_BUCKET/$2" "/hostdir/${relative_dir}" $args
+  aws_cli s3 cp --quiet "s3://$IT_CASE_S3_BUCKET/$2" "/hostdir/${relative_dir}" $args
 }
 
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