Update The Gin Admin theme from 3.0.0-rc4 to 3.0.0-rc5 and keep needed patches

Problem/Motivation

The Gin Admin Theme 8.x-3.0-rc5 was released on: 16 Jul 2023 by: saschaeggi
https://www.drupal.org/project/gin/releases/8.x-3.0-rc5

Proposed resolution

• Change drupal/gin to 3.0.0-rc5 in the composer.josn file
• Keep the patch for #3325263: Fix user.data ServiceNotFoundException when using Gin as distribution installer theme

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 10.0.0-beta1, vartheme_claro-4.0.0-rc1

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 #3376479: Updated The Gin Admin theme from 3.0.0-rc4 to 3.0.0-rc5 and kept needed patches