Update Admin Toolbar from ~3.0 to ~3.4.0

Problem/Motivation

Admin Toolbar 3.4.0 on: 10 May 2023 by: adriancid
https://www.drupal.org/project/admin_toolbar/releases/3.4.0

Support for 3.3.x was dropped

Proposed resolution

• Change drupal/admin_toolbar to ~3.4.0

Keep the patch for #3338408: Resolve access check errors for D10 compatibility on the 10.0.x branch

Remaining tasks

• ✅ File an issue about this project
• ✅ Addition/Change/Update/Fix to this project
• ✅ Testing to ensure no regression
• ✅ Automated unit/functional testing coverage
• ➖ Developer Documentation support on feature change/addition
• ➖ User Guide Documentation support on feature change/addition
• ✅ Accessibility and Readability
• ✅ Code review from 1 Varbase core team member
• ✅ Full testing and approval
• ✅ Credit contributors
• ✅ Review with the product owner
• ✅ Update Release Notes and Update Helper on new feature change/addition
• ✅ Release varbase-9.0.14, varbase_core-9.0.56

Varbase update type

• ✅ No Update
• ➖ Optional Update
• ➖ Forced Update
• ➖ Forced Update if Unchanged

User interface changes

• N/A

API changes

• N/A

Data model changes

• N/A

Release notes snippet

• Issue #3360254: Updated Admin Toolbar from ~3.0 to ~3.4.0