test: [DI-30016] - Add spec for Edit notification channel

[shnagend-akamai]

Description 📝

This PR introduces a new test specification for editing a notification channel in the Linode Manager application. It covers updating the channel name and modifying the list of recipients.

Changes 🔄

• Adds a test spec file to cover the "Edit notification channel" functionality.
• Includes UI test scripts to automate the workflow of editing a notification channel via the application interface.
• Corresponding API intercepts have been added to mock scenarios.
• The new specs ensure that notifications channels can be edited successfully, and that UI and backend behaviors are as expected.

Target release date 🗓️

Upcoming release

Preview 📷

alert-notification-channel-edit.spec.ts.mp4

How to test 🧪

pnpm cy:run -s "cypress/e2e/core/cloudpulse/alert-notification-channel-edit.spec.ts"

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

[dwiley-akamai]

Test passes locally & in CI ✅

[shnagend-akamai]

@dmcintyr-akamai Can you please review this and approve.

[santoshp210-akamai]

The failing cypress tests are unrelated the PR changes, synced again with the base branch. Once the jobs are done, will be merging this PR

[linode-gh-bot]

Cloud Manager UI test results

🔺 3 failing tests on test run #3 ↗︎

❌ Failing	✅ Passing	↪️ Skipped	🕐 Duration
3 Failing	868 Passing	11 Skipped	36m 56s

Details

Failing Tests
	Spec	Test
❌	object-storage.e2e.spec.ts	Cloud Manager Cypress Tests→object storage end-to-end tests » can create and delete object storage buckets
❌	account-switching.spec.ts	Cloud Manager Cypress Tests→Parent/Child account switching→From Child to Parent » can switch from Proxy user back to Parent account user from Billing page
❌	account-switching.spec.ts	Cloud Manager Cypress Tests→Parent/Child account switching→From Child to Child » can switch to another Child account as a Proxy user

Troubleshooting

Use this command to re-run the failing tests:

pnpm cy:run -s "cypress/e2e/core/objectStorage/object-storage.e2e.spec.ts,cypress/e2e/core/parentChild/account-switching.spec.ts"