Updated Boost easyblock to avoid libboost_system on version 1.89 or higher#4088

ccoulombe wants to merge 2 commits intoeasybuilders:developeasybuilders/easybuild-easyblocks:developfrom

ccoulombe:update/boost-1.90+ccoulombe/easybuild-easyblocks:update/boost-1.90+Copy head branch name to clipboard