chore(cc): bump @webex/contact-center to 3.12.0-next.42

[bhabalan]

COMPLETES # N/A — routine dependency bump

This pull request addresses

Keeping the @webex/contact-center SDK dependency up to date with the latest pre-release to pick up recent fixes and features.

by making the following changes

• Bumped @webex/contact-center from 3.12.0-next.14 to 3.12.0-next.42 in packages/contact-center/store/package.json
• Regenerated yarn.lock

Change Type

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update
• Tooling change
• Internal code refactor

The following scenarios were tested

• The testing is done with the amplify link
• yarn install completes successfully
• All CC widget unit tests pass (pre-commit hook)

The GAI Coding Policy And Copyright Annotation Best Practices

• GAI was not used (or, no additional notation is required)
• Code was generated entirely by GAI
• GAI was used to create a draft that was subsequently customized or modified
• Coder created a draft manually that was non-substantively modified by GAI (e.g., refactoring was performed by GAI on manually written code)
• Tool used for AI assistance (GitHub Copilot / Other - specify)
  • Github Copilot
  • Other - Claude Code
• This PR is related to
  • Feature
  • Defect fix
  • Tech Debt
  • Automation

Checklist before merging

• I have not skipped any automated checks
• All existing and new tests passed
• I have updated the testing document
• I have tested the functionality with amplify link

[aws-amplify-us-east-2]

This pull request is automatically being deployed by Amplify Hosting (learn more).

Access this pull request here: https://pr-686.d1b38q61t1z947.amplifyapp.com

[mkesavan13]

I think everytime we upgrade the SDK version, we upgrade it in the sample app as well. Could we please do that?