Do we need to update any policy if we are using admin access for sqs dql redrive (Context: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-dead-letter-queues-cloudtrail)

There is no need to change the policy if the admin access has the following policy attached.

• AmazonSQSFullAccess – It includes the dead-letter queue redrive tasks: start, cancel, and list.

Note: AWS Security Best practices however recommend to give access to resources using the principle of least privilege. See Least privilege permissions

The least privilege permission required to give a user access to a dead-letter queue redrive actions can be found here