Allow PR label to control whether all wheels are built in CI
Allow PR label to control whether all wheels are built in CI

StuartLittlefair/astropy,pllim/astropy,StuartLittlefair/astropy,larrybradley/astropy,astropy/astropy,StuartLittlefair/astropy,lpsinger/astropy,lpsinger/astropy,astropy/astropy,mhvk/astropy,astropy/astropy,larrybradley/astropy,pllim/astropy,StuartLittlefair/astropy,astropy/astropy,lpsinger/astropy,mhvk/astropy,larrybradley/astropy,lpsinger/astropy,mhvk/astropy,astropy/astropy,pllim/astropy,mhvk/astropy,pllim/astropy,mhvk/astropy,pllim/astropy,larrybradley/astropy,larrybradley/astropy,lpsinger/astropy,StuartLittlefair/astropy