feat(cli): change set review on deploy

[orien]

Implementation of #801 and RFC 370: CLI deploy with change set review confirmation.

This feature enhances the existing --require-approval=any-change option to show all stack changes (not just security changes) and integrates CloudFormation change set creation and review to provide users with an accurate preview of what will be applied before deployment execution.

Modern cloud infrastructure contains critical stateful resources—databases, persistent storage, message queues, and other systems that hold valuable data and maintain complex state. Engineers deploying changes to these environments carry significant responsibility: a single misunderstood deployment can lead to data loss, service outages, or security vulnerabilities that affect customers and business operations. While Infrastructure as Code provides repeatability and version control, it doesn't eliminate the fundamental need for engineers to understand precisely what changes will be applied before execution. Tooling must bridge this gap by providing clear, accurate previews of deployment impact—especially for stateful resources where "undo" isn't always possible. This enhancement ensures that engineers have the complete information they need to make informed decisions about infrastructure changes.

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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

[orien]

Support deploying/executing an existing CloudFormation change set.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87.93%. Comparing base (ba59816) to head (4dd1262).

Additional details and impacted files

@@ Coverage Diff @@ ## main #892 +/- ## ========================================== + Coverage 87.70% 87.93% +0.22%  ========================================== Files 72 72 Lines 10121 10203 +82 Branches 1337 1352 +15 ========================================== + Hits 8877 8972 +95  + Misses 1219 1206 -13  Partials 25 25 

Flag	Coverage Δ
suite.unit	87.93% <100.00%> (+0.22%)	⬆️

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