[14.0.X] add a python compilation unit test for DQM online clients#44472

cmsbuild merged 2 commits intocms-sw:CMSSW_14_0_Xcms-sw/cmssw:CMSSW_14_0_Xfrom

mmusich:compileClients_14_0_Xmmusich/cmssw:compileClients_14_0_XCopy head branch name to clipboard