Update WordPress Editor iOS to 1.19.5

[geriux]

• Gutenberg Mobile PR: Add support for the Mark HTML tag and updates Aztec iOS to 1.19.5 gutenberg-mobile#4162
• Gutenberg PR: Mobile - Add support for the Mark HTML tag and updates Aztec iOS to 1.19.5 WordPress/gutenberg#35956

This PR updates WordPress Editor iOS to 1.19.5.

To test Check the Gutenberg PR description.

Regression Notes

1. Potential unintended areas of impact

• Block editor

2. What I did to test those areas of impact (or what existing automated tests I relied on)
   Manual testing and Gutenberg mobile E2E tests

3. What automated tests I added (or what prevented me from doing so)
   None

PR submission checklist:

• I have completed the Regression Notes.
• I have considered adding unit tests for my changes.
• I have considered adding accessibility improvements for my changes.
• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

The release notes update will be included in the next Gutenberg mobile release.

[peril-wordpress-mobile]

You can trigger an installable build for these changes by visiting CircleCI here.

[peril-wordpress-mobile]

You can trigger optional UI/connected tests for these changes by visiting CircleCI here.

[antonis]

Great work @geriux 👍
Tested the build from AppCenter and everything works as expected 🎉