Release v1.5.6

[planarvoid]

This branch is used to test the changes made to Aztec editor in other repositories. It contains no changes to the logic, just the README update. To test it target: 975-e69dca965397a9f2978c8722976bee2f9de597ba as the aztec version.

Review

@AmandaRiu @hypest

Make sure strings will be translated:

• [x] If there are new strings that have to be translated, I have added them to the client's strings.xml as a part of the integration PR.

[hypest]

Unfortunately, I won't have today to attend to this PR so, perhaps @mchowning you can join instead? @planarvoid also had let me know (via Slack) that this is ready to be tested from the gutenberg-mobile side and would like help with creating the gb-mobile and/or Gutenberg PRs to point to this one.

[mchowning]

I've created Gutenberg and Android PRs with this change. The WPAndroid PR has builds for testing. I did a bit of testing and didn't see any issues.

• https://github.com/WordPress/gutenberg/pull/40099
• https://github.com/wordpress-mobile/WordPress-Android/pull/16270

[AmandaRiu]

Will wait till this PR is merged before testing this PR. @planarvoid please let me know when it's ready 👍🏻

[planarvoid]

I think this is ready for review/merge @AmandaRiu @mchowning . The version number will actually be v1.5.7 but I'll add that tag only once this is merged. I've added the v1.5.6 tag too early and it doesn't include all the changes now.

[AmandaRiu]

This is approved, but unable to merge due to CI failures. Attempting to rerun.

[AmandaRiu]

Ah, the build is failing for CI on the step to publish to S3 because 1.5.6 is already published to S3. Going to do a forced merge.