vellum:b8e74d2c3ce5de0961042844f1827a325e5370c3 updates CKEditor to 4.21.0

[ajeety4]

updates CkEditor to 4.21.0
[ci skip]

Product Description

See Upstream Vellum PR: dimagi/Vellum#1081

Technical Summary

https://dimagi-dev.atlassian.net/browse/INDIV-88

Feature Flag

Safety Assurance

Safety story

Automated test coverage

QA Plan

QA was passed on staging.
https://dimagi-dev.atlassian.net/browse/QA-4973

Rollback instructions

• This PR can be reverted after deploy with no further considerations

Labels & Review

• Risk label is set correctly
• The set of people pinged as reviewers is appropriate for the level of risk of the change

[millerdev]

Closing and opening to run tests.

[millerdev]

There's more churn in manifest.txt than I would expect. Maybe that's a side-effect of upgrading CKEditor or maybe a bunch of other dependencies were updated in addition? In any case since this passed QA it's probably not a problem.

Edit: I don't understand why github is not running tests.

[ajeety4]

There's more churn in manifest.txt than I would expect. Maybe that's a side-effect of upgrading CKEditor or maybe a bunch of other dependencies were updated in addition? In any case since this passed QA it's probably not a problem.

Edit: I don't understand why github is not running tests.

For manifest.text churn, not anything specific to CKEditor, however this does include some dependency updates on Vellum since last merge.
dimagi/Vellum@a68c0b7 and dimagi/Vellum@52333e9 contains most of them.

[ajeety4]

Closing and reopening again to run tests.
Edit: Still not working, trying amend and force push with no changes!
Edit2: Trying again with updating this branch with master.