Stable link to apache-ant-*-bin.tar.xz?

<https://github.com/flathub/org.libreoffice.LibreOffice/blob/1168072d19f358ffacc783aa83773789c6eafb99/org.libreoffice.LibreOffice.json#L33> 
is a flatpak-manifest (for building LibreOffice as a Flatpak) that needs 
Ant during the build and thus downloads it from 
<http://www-us.apache.org/dist/ant/binaries/apache-ant-1.10.1-bin.tar.xz>, 
as it was available a while ago from 
<http://ant.apache.org/bindownload.cgi>.

However, I now found out that that URL is 404 by now, and there's a new 
<http://www-us.apache.org/dist/ant/binaries/apache-ant-1.10.2-bin.tar.xz> 
instead.  So I'd need to adapt that org.libreoffice.LibreOffice.json 
flatpak-manifest now, and would likely need to do so periodically in the 
future, whenever a new Ant release replaces the previous one.

Is there a better URL I could use for my purposes (that might also be 
more mirror-friendly)?  I'm not interested in a specific 1.10.1 version, 
assuming that any recent or future 1.y.z version would do; but I do need 
a matching SHA to be recorded in the flatpak-manifest, so am bound to a 
URL for a specific version in practice.