Build/Test Tools: Update to Ubuntu 26.04 and pin the Windows runner in the 5.5 branch. - #15550

Build/Test Tools: Update to Ubuntu 26.04 and pin the Windows runner in the 5.5 branch.#15550

desrosj wants to merge 2 commits into

WordPress:5.5WordPress/wordpress-develop:5.5from

desrosj:update-runners-ubuntu-26.04-5.5desrosj/wordpress-develop:update-runners-ubuntu-26.04-5.5Copy head branch name to clipboard