Allow github-actions role to assume required roles

[davidkelliott]

User Story

The github-actions role created in #2036 needs to be able to assume the following roles:

same member account - :role/MemberInfrastrucutureAccess role - https://github.com/ministryofjustice/modernisation-platform/blob/main/terraform/environments/bootstrap/delegate-access/iam.tf#L33

core-vpc roles eg - :role/member-delegation-hmpps-test - https://github.com/ministryofjustice/modernisation-platform/blob/main/terraform/environments/core-vpc/vpc.tf#L256

core-network-services roles - :role/modify-dns-records https://github.com/ministryofjustice/modernisation-platform/blob/main/terraform/environments/core-network-services/iam.tf#L6

Value

Allows the role to be assumed by the github-actions role

Questions / Assumptions / Hypothesis

Definition of done

• [ ] roles have been amended
• [ ] another team member has reviewed
• [ ] tests are green
• [ ] UR test OR added to continual research plan

Reference

How to write good user stories

[davidkelliott]

https://github.com/ministryofjustice/modernisation-platform/issues/1975

[dms1981]

Requires completion of #2035 to unblock this story