TST: Try checkout v1, see actions/checkout#334 [ci skip]
TST: Try checkout v1, see actions/checkout#334 [ci skip]

aleksandr-bakanov/astropy,mhvk/astropy,larrybradley/astropy,astropy/astropy,larrybradley/astropy,lpsinger/astropy,astropy/astropy,lpsinger/astropy,StuartLittlefair/astropy,lpsinger/astropy,astropy/astropy,pllim/astropy,dhomeier/astropy,pllim/astropy,astropy/astropy,lpsinger/astropy,dhomeier/astropy,dhomeier/astropy,StuartLittlefair/astropy,larrybradley/astropy,saimn/astropy,saimn/astropy,pllim/astropy,dhomeier/astropy,larrybradley/astropy,pllim/astropy,aleksandr-bakanov/astropy,mhvk/astropy,saimn/astropy,aleksandr-bakanov/astropy,aleksandr-bakanov/astropy,larrybradley/astropy,lpsinger/astropy,mhvk/astropy,saimn/astropy,StuartLittlefair/astropy,mhvk/astropy,dhomeier/astropy,astropy/astropy,saimn/astropy,pllim/astropy,mhvk/astropy,StuartLittlefair/astropy,StuartLittlefair/astropy