Document DescribeInstanceTypeOfferings permission

[0x2b3bfa0]

• https://github.com/iterative/terraform-provider-iterative/pull/670#pullrequestreview-1134317993

[dacbd]

I dont think this is used by task...? https://cml.dev/doc/ref/runner#common-permissions

[0x2b3bfa0]

No, it's not

[0x2b3bfa0]

Those permissions are for both task and machine because somebody in a meeting^{[citation needed]} found it convenient.

[dacbd]

data "aws_iam_policy_document" "task" { + "ec2:DescribeInstanceTypeOfferings",

[dacbd]

https://github.com/iterative/cml.dev/pull/337