feat: [UIE-9392] - IAM Parent/Child: delegate permissions for parent account

[mpolotsk-akamai]

Description 📝

This PR implements permission's check for parent account.

Changes 🔄

List any change(s) relevant to the reviewer.

• Add permission for parent account

Scope 🚢

Upon production release, changes in this PR will be visible to:

• All customers
• Some customers (e.g. in Beta or Limited Availability)
• No customers / Not applicable

Target release date 🗓️

11/18

Preview 📷

Before	After

How to test 🧪

Prerequisites

(How to setup test environment)

• IAM parent DevCloud account (IAM Delegation (Parent/Child) flag should be enabled)
• use MSW CRUD mode
• use Custom User Account Permissions with/without update_delegate_users permission

Verification steps

(How to verify changes)

• navigate to iam/delegations
• verify that the “Update Delegations” button is disabled when the user does not have the update_delegate_users permission
• verify that the “Update” button in the Update Delegations drawer is disabled when the user does not have the update_delegate_users permission

Author Checklists

As an Author, to speed up the review process, I considered 🤔

👀 Doing a self review
❔ Our contribution guidelines
🤏 Splitting feature into small PRs
➕ Adding a changeset
🧪 Providing/improving test coverage
🔐 Removing all sensitive information from the code and PR description
🚩 Using a feature flag to protect the release
👣 Providing comprehensive reproduction steps
📑 Providing or updating our documentation
🕛 Scheduling a pair reviewing session
📱 Providing mobile support
♿ Providing accessibility support

• I have read and considered all applicable items listed above.

As an Author, before moving this PR from Draft to Open, I confirmed ✅

• All tests and CI checks are passing
• TypeScript compilation succeeded without errors
• Code passes all linting rules

[linode-gh-bot]

Cloud Manager UI test results

🔺 3 failing tests on test run #5 ↗︎

❌ Failing	✅ Passing	↪️ Skipped	🕐 Duration
3 Failing	858 Passing	11 Skipped	46m 16s

Details

Failing Tests
	Spec	Test
❌	create-stackscripts.spec.ts	Cloud Manager Cypress Tests→Create stackscripts » creates a StackScript and deploys a Linode with it
❌	clone-linode.spec.ts	Cloud Manager Cypress Tests→clone linode » can clone a Linode from Linode details page
❌	update-stackscripts.spec.ts	Cloud Manager Cypress Tests→Update stackscripts » updates a StackScript

Troubleshooting

Use this command to re-run the failing tests:

pnpm cy:run -s "cypress/e2e/core/stackscripts/create-stackscripts.spec.ts,cypress/e2e/core/linodes/clone-linode.spec.ts,cypress/e2e/core/stackscripts/update-stackscripts.spec.ts"