feat(mediapackagev2): add region attribute on mediapackagev2 resources and extra naming validation

[jamiepmullan]

Reason for this change

Allow cross-region references on an imported MediaPackageV2 channel and extra runtime validation on manifest naming.
Docs: https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-properties-medialive-channel-mediapackageoutputdestinationsettings.html
(MediaPackageRegionName)

Description of changes

Overview of change:

1. Add region attribute on mediapackagev2 resources
2. add "from***Arn()" functions for imports
3. Added validation to unique manifest names

Describe any new or updated permissions being added

N/A

Description of how you validated changes

Added new unit tests

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

[aws-cdk-automation]

(This review is outdated)

✅ Updated pull request passes all PRLinter validations. Dismissing previous PRLinter review.

[github-actions]

⚠️ Experimental Feature: This security report is currently in experimental phase. Results may include false positives and the rules are being actively refined.
This security report is NOT a review blocker. Please try merge from main to avoid findings unrelated to the PR.

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	Tests	Passed ✅	Skipped	Failed
Security Guardian Results	48 ran	48 passed

Test	Result
No test annotations available

• View Security Guardian Results

[github-actions]

⚠️ Experimental Feature: This security report is currently in experimental phase. Results may include false positives and the rules are being actively refined.
This security report is NOT a review blocker. Please try merge from main to avoid findings unrelated to the PR.

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	Tests	Passed ✅	Skipped	Failed
Security Guardian Results with resolved templates	48 ran	48 passed

Test	Result
No test annotations available

• View Security Guardian Results with resolved templates

Pull request has been modified.

[alvazjor]

Nice, thanks

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Merge Queue Status

• ✅ Entered queue — 2026-04-10 13:04 UTC · Rule: default-squash
• 🚫 Left the queue — 2026-04-10 13:04 UTC · at 2cb886d2800c0142be8f2614e04259a5aa06fd71

This pull request spent 5 seconds in the queue, with no time running CI.

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Pull request has been modified.

[mergify]

Thank you for contributing! Your pull request will be updated from main and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).

[mergify]

Merge Queue Status

• ✅ Entered queue — 2026-04-10 17:02 UTC · Rule: default-squash
• ✅ Checks skipped · PR is already up-to-date
• ✅ Merged — 2026-04-10 17:03 UTC · at 47240e13d86eb8c61651556096ea9ca1a6d52a9d

This pull request spent 13 seconds in the queue, including 2 seconds running CI.

Required conditions to merge

• #approved-reviews-by >= 1 [🛡 GitHub branch protection]
  • feat(mediapackagev2): add region attribute on mediapackagev2 resources and extra naming validation #37526
• #changes-requested-reviews-by = 0 [🛡 GitHub branch protection]
  • feat(mediapackagev2): add region attribute on mediapackagev2 resources and extra naming validation #37526
• any of [🛡 GitHub branch protection]:
  • check-success = validate-pr
  • check-neutral = validate-pr
  • check-skipped = validate-pr
• any of [🛡 GitHub branch protection]:
  • check-success = build
  • check-neutral = build
  • check-skipped = build

[github-actions]

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