[CI] (Re-)use ramsey/composer-install action when possible#2885

Kocal merged 1 commit intosymfony:2.xsymfony/ux:2.xfrom

Kocal:revert-2780-ramsey-install+cache-all-composer-depsKocal/symfony-ux:revert-2780-ramsey-install+cache-all-composer-depsCopy head branch name to clipboard