Added changelog entry for astropy-helpers update [skip ci]
Added changelog entry for astropy-helpers update [skip ci]

kelle/astropy,stargaser/astropy,aleksandr-bakanov/astropy,MSeifert04/astropy,stargaser/astropy,lpsinger/astropy,astropy/astropy,StuartLittlefair/astropy,saimn/astropy,stargaser/astropy,mhvk/astropy,AustereCuriosity/astropy,tbabej/astropy,StuartLittlefair/astropy,StuartLittlefair/astropy,joergdietrich/astropy,MSeifert04/astropy,mhvk/astropy,kelle/astropy,astropy/astropy,mhvk/astropy,kelle/astropy,joergdietrich/astropy,dhomeier/astropy,tbabej/astropy,larrybradley/astropy,pllim/astropy,funbaker/astropy,DougBurke/astropy,larrybradley/astropy,astropy/astropy,saimn/astropy,dhomeier/astropy,lpsinger/astropy,larrybradley/astropy,pllim/astropy,pllim/astropy,aleksandr-bakanov/astropy,kelle/astropy,lpsinger/astropy,funbaker/astropy,AustereCuriosity/astropy,dhomeier/astropy,tbabej/astropy,AustereCuriosity/astropy,mhvk/astropy,larrybradley/astropy,bsipocz/astropy,AustereCuriosity/astropy,lpsinger/astropy,tbabej/astropy,stargaser/astropy,dhomeier/astropy,DougBurke/astropy,saimn/astropy,lpsinger/astropy,dhomeier/astropy,StuartLittlefair/astropy,saimn/astropy,pllim/astropy,StuartLittlefair/astropy,bsipocz/astropy,DougBurke/astropy,larrybradley/astropy,bsipocz/astropy,funbaker/astropy,astropy/astropy,joergdietrich/astropy,kelle/astropy,aleksandr-bakanov/astropy,tbabej/astropy,AustereCuriosity/astropy,DougBurke/astropy,MSeifert04/astropy,pllim/astropy,joergdietrich/astropy,astropy/astropy,aleksandr-bakanov/astropy,joergdietrich/astropy,bsipocz/astropy,mhvk/astropy,saimn/astropy,MSeifert04/astropy,funbaker/astropy