Only use chr(30) and chr(31) delimiters in cirq-ionq

[splch]

• update tests to remove\u* and \x*

relates to #5216

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.38%. Comparing base (8dd8a8f) to head (01c892c).
⚠️ Report is 94 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7699      +/-   ##
==========================================
- Coverage   99.38%   99.38%   -0.01%     
==========================================
  Files        1090     1090              
  Lines       98300    98301       +1     
==========================================
  Hits        97695    97695              
- Misses        605      606       +1     

☔ 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.

[mhucka]

@splch Thank you for your work on this! When you get a chance, could you update the title of this PR to mention that this is for cirq-ionq, and also add a bit more explanation to the PR description? This will help future contributors and maintainers when reading and searching through past work.

[mhucka]

@splch I'm not sure if this draft PR is still something planned. It looks like the associated issue was closed. Maybe this should be closed too? (No biggie either way; just going around and checking up on things.)

[github-actions]

This pull request has been automatically labeled as stale because 90 days have passed without comments or other activity. If no further activity occurs and the status/stale label is not removed by a maintainer within 60 days, this pull request will be closed. If you would like to restore its active status, please leave a comment here; doing so will cause the staleness handler to remove the label.

If you have questions or feedback about this process, we welcome your input. You can open a new issue to let us know (please also reference this issue there, for continuity), or reach out to the project maintainers at quantum-oss-maintainers@google.com.