CI, MAINT: Azure OpenBLAS drive flip
CI, MAINT: Azure OpenBLAS drive flip

* Azure CI is misbehaving again with ` ValueError: path is on mount
'D:', start on mount 'C:'`

* move the OpenBLAS static library install location to the other
drive (containing the Agent software and NumPy/distutils pip
installs)

Eric89GXL/scipy,WarrenWeckesser/scipy,matthew-brett/scipy,mdhaber/scipy,perimosocordiae/scipy,grlee77/scipy,nmayorov/scipy,WarrenWeckesser/scipy,zerothi/scipy,scipy/scipy,vigna/scipy,scipy/scipy,perimosocordiae/scipy,endolith/scipy,anntzer/scipy,Stefan-Endres/scipy,pizzathief/scipy,matthew-brett/scipy,zerothi/scipy,andyfaff/scipy,mdhaber/scipy,zerothi/scipy,pizzathief/scipy,andyfaff/scipy,scipy/scipy,e-q/scipy,rgommers/scipy,ilayn/scipy,endolith/scipy,WarrenWeckesser/scipy,andyfaff/scipy,andyfaff/scipy,scipy/scipy,rgommers/scipy,Eric89GXL/scipy,anntzer/scipy,e-q/scipy,vigna/scipy,matthew-brett/scipy,perimosocordiae/scipy,Stefan-Endres/scipy,grlee77/scipy,scipy/scipy,tylerjereddy/scipy,ilayn/scipy,nmayorov/scipy,grlee77/scipy,nmayorov/scipy,vigna/scipy,zerothi/scipy,andyfaff/scipy,scipy/scipy,ilayn/scipy,ilayn/scipy,nmayorov/scipy,matthew-brett/scipy,vigna/scipy,vigna/scipy,mdhaber/scipy,Eric89GXL/scipy,grlee77/scipy,anntzer/scipy,tylerjereddy/scipy,endolith/scipy,grlee77/scipy,e-q/scipy,Stefan-Endres/scipy,WarrenWeckesser/scipy,pizzathief/scipy,endolith/scipy,Stefan-Endres/scipy,endolith/scipy,perimosocordiae/scipy,endolith/scipy,anntzer/scipy,perimosocordiae/scipy,tylerjereddy/scipy,perimosocordiae/scipy,Eric89GXL/scipy,ilayn/scipy,ilayn/scipy,WarrenWeckesser/scipy,andyfaff/scipy,pizzathief/scipy,Stefan-Endres/scipy,anntzer/scipy,anntzer/scipy,e-q/scipy,tylerjereddy/scipy,mdhaber/scipy,mdhaber/scipy,pizzathief/scipy,zerothi/scipy,Eric89GXL/scipy,e-q/scipy,WarrenWeckesser/scipy,zerothi/scipy,rgommers/scipy,matthew-brett/scipy,mdhaber/scipy,nmayorov/scipy,tylerjereddy/scipy,Eric89GXL/scipy,rgommers/scipy,rgommers/scipy,Stefan-Endres/scipy