Build/Test Tools: Update to Ubuntu 26.04 and macOS 26, pin the Windows runner, and update Playwright to 1.64.1 in the 6.4 branch. - #15564

Build/Test Tools: Update to Ubuntu 26.04 and macOS 26, pin the Windows runner, and update Playwright to 1.64.1 in the 6.4 branch.#15564

desrosj wants to merge 4 commits into

WordPress:6.4WordPress/wordpress-develop:6.4from

desrosj:update-runners-ubuntu-26.04-6.4desrosj/wordpress-develop:update-runners-ubuntu-26.04-6.4Copy head branch name to clipboard