Fix dtypes of erfa input arrays
Fix dtypes of erfa input arrays

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