Repair wp/6.7 branch Actions: Improve reliability of TinyMCE-related tests - #82905

Repair wp/6.7 branch Actions: Improve reliability of TinyMCE-related tests#82905

desrosj wants to merge 3 commits into

fix-actions-6.7/ignore-browserslist-old-dataWordPress/gutenberg:fix-actions-6.7/ignore-browserslist-old-datafrom

fix-actions-6.7/fix-flaky-metabox-tinymce-raceWordPress/gutenberg:fix-actions-6.7/fix-flaky-metabox-tinymce-raceCopy head branch name to clipboard