chore(deps): upgrade @aws-cdk/cloud-assembly-schema to ^55.0.0

[kumsmrit]

Issue # (if applicable)

Closes #.

Reason for this change

The automated dependency upgrade PR #38488 is failing the aws-cdk-lib build at check-peer-dependencies:

@aws-cdk/cloud-assembly-api requires peer @aws-cdk/cloud-assembly-schema@>=55.0.0, but aws-cdk-lib has ^54.26.0 (min: 54.26.0)

The upgrade workflow bumped @aws-cdk/cloud-assembly-api from ^2.2.6 to ^2.5.0, a minor version bump. But cloud-assembly-api@2.5.0 raised its peer requirement to @aws-cdk/cloud-assembly-schema@>=55.0.0, and the workflow can't move cloud-assembly-schema across a major version, so it stops at ^54.26.0.

Description of changes

Bumped @aws-cdk/cloud-assembly-schema from ^54.24.0 to ^55.0.0 in:

• packages/aws-cdk-lib/package.json
• packages/@aws-cdk/cx-api/package.json (devDependencies)
• yarn.lock was regenerated with yarn install.

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Description of how you validated changes

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

---

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

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Merge Queue Status

• ✅ Entered queue — 2026-10-16 09:11 UTC · Rule: default-squash · triggered by rule automatic merge
• ✅ Checks passed · in-place
• ✅ Merged — 2026-10-16 09:50 UTC · at dcd8b3a7fe099c1f6d019c0ea8c8b54d40049bc0 · squash

This pull request spent 38 minutes 20 seconds in the queue, including 37 minutes 31 seconds running CI.

Required conditions to merge

• github-review-approved [🛡 GitHub branch protection]
  • chore(deps): upgrade @aws-cdk/cloud-assembly-schema to ^55.0.0 #39314
• 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

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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).

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