[Fix] Update targetSdk to 34 from 33.

[notandyvee]

Fix

Issue: #1072 Related: https://github.com/wordpress-mobile/gutenberg-mobile/issues/6533.

This PR bumps the targetSdk version from 33 to 34. It depends on WP Utils 141: https://github.com/wordpress-mobile/WordPress-Utils-Android/pull/141

Test

• [ ] Ensure build passes.
• [ ] Ensure the sample app is showing rich text properly.

Review

@irfano

Note

I'm not 100% sure how to test this against WP-util, other than waiting until that one is merged and then updating it here. Thoughts @ravishanker

Make sure strings will be translated:

• [ ] 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.

[notandyvee]

Looks like there are build issues. Will fix.

[irfano]

I tested and confirmed targetSdk upgrade works. 👍🏻 UI tests are failing because Robolectric added Android support with 4.11, and we are currently using 4.9. If you wish, you can upgrade the Robolectric version in a separate PR by targeting fix/target-sdk-34-update to distinguish the context from this PR.

[notandyvee]

Done @irfano . Thanks!