Merge pull request #28193 from civicrm/5.68

5.68

diff --cc CRM/Contribute/Form/Contribution/ThankYou.php
Simple merge

diff --cc CRM/Contribute/Form/ContributionBase.php
Simple merge

diff --cc ext/civicrm_admin_ui/managed/SavedSearch_Manage_Contribution_Pages.mgd.php
Simple merge

diff --cc tests/phpunit/CiviTest/CiviUnitTestCase.php
Simple merge