CI: upgrade CI image to run on Ubuntu 22.04 instead of 20.04 (#16992)
CI: upgrade CI image to run on Ubuntu 22.04 instead of 20.04 (#16992)


andyfaff/scipy,endolith/scipy,Stefan-Endres/scipy,Stefan-Endres/scipy,scipy/scipy,endolith/scipy,rgommers/scipy,anntzer/scipy,ilayn/scipy,rgommers/scipy,WarrenWeckesser/scipy,WarrenWeckesser/scipy,ilayn/scipy,andyfaff/scipy,rgommers/scipy,ilayn/scipy,Stefan-Endres/scipy,rgommers/scipy,andyfaff/scipy,mdhaber/scipy,scipy/scipy,rgommers/scipy,mdhaber/scipy,Stefan-Endres/scipy,mdhaber/scipy,scipy/scipy,endolith/scipy,scipy/scipy,anntzer/scipy,andyfaff/scipy,scipy/scipy,endolith/scipy,WarrenWeckesser/scipy,Stefan-Endres/scipy,Stefan-Endres/scipy,anntzer/scipy,andyfaff/scipy,anntzer/scipy,endolith/scipy,mdhaber/scipy,WarrenWeckesser/scipy,WarrenWeckesser/scipy,andyfaff/scipy,mdhaber/scipy,ilayn/scipy,ilayn/scipy,endolith/scipy,mdhaber/scipy,WarrenWeckesser/scipy,anntzer/scipy,scipy/scipy,ilayn/scipy,anntzer/scipy