IMDSv2 support

[faizanakram99]

Not sure if this is already the case in async-aws but it is preferred to use Instance metadata v2 over v1 in ami linux 2. I couldn't find any related issue or PR referencing it.

More info on Instance metadata v2 here.
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/configuring-instance-metadata-service.html

We receive authentication error when we disable IMDSv1 on ec2 instances with symfony/amazon-sqs-messenger

[antonio-masotti]

Is there a ETL for this? We cannot update our EC2 Instances, because otherwise they wouldn't be able to retrieve the credentials from the associated IAM Role (missing token).