5479 y26 019 different retention instructions for different tubes in same manifest

[wendyyang]

Closes #5479

Changes proposed in this pull request

• remove retention instruction validation

Instructions for Reviewers

[All PRs] - Confirm PR template filled
[Feature Branches] - Review code
[Production Merges to main]
    - Check story numbers included
    - Check for debug code
    - Check version

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87.34%. Comparing base (181fa9f) to head (3ff6ea0).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #5502      +/-   ##
===========================================
- Coverage    87.40%   87.34%   -0.06%     
===========================================
  Files         1457     1457              
  Lines        32705    32693      -12     
  Branches      3423     3418       -5     
===========================================
- Hits         28586    28556      -30     
- Misses        4104     4122      +18     
  Partials        15       15              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.