Update sphinx-changelog min version
Update sphinx-changelog min version

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