[PLA-16758] Create IAM permissions on ca-tm-qa to allow for templates to be shared to the other tms accounts

[https://aws.amazon.com/premiumsupport/knowledge-center/quicksight-cross-account-template/|https://aws.amazon.com/premiumsupport/knowledge-center/quicksight-cross-account-template/] for a guide

The templates on ca-tm-qa require the permissions on them set to:

{noformat}[{ "Principal": ["arn:aws:iam:::root",...], "Actions": ["quicksight:DescribeTemplate"] }]{noformat}

The role used by terraform will also need access to all the shared templates

{noformat}{ "Effect": "Allow", "Resource": "arn:aws:quicksight:eu-west-1::template/*", "Action": "quicksight:DescribeTemplate" },{noformat}

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Issue metadata

• Issue type: Task
• Priority: Minor
• Parent issue: [PLA-16753] Create an MVP of per tenant dashboarding and quicksight integration with TMS