BUILD: fix tag name for travis: it is v1.23.0rc1
BUILD: fix tag name for travis: it is v1.23.0rc1

pdebuyl/numpy,charris/numpy,mattip/numpy,anntzer/numpy,anntzer/numpy,endolith/numpy,charris/numpy,pdebuyl/numpy,mhvk/numpy,numpy/numpy,rgommers/numpy,endolith/numpy,mhvk/numpy,rgommers/numpy,numpy/numpy,endolith/numpy,mhvk/numpy,endolith/numpy,mattip/numpy,pdebuyl/numpy,numpy/numpy,pdebuyl/numpy,charris/numpy,rgommers/numpy,mhvk/numpy,mhvk/numpy,mattip/numpy,charris/numpy,rgommers/numpy,anntzer/numpy,anntzer/numpy,numpy/numpy,mattip/numpy