texlive: use texhistoric mirror list

pkgs/tools/typesetting/tex/texlive/bin.nix

@@ -141,10 +141,7 @@ let
   common = {
     # initial TeX Live 2025 release
     # src = fetchurl {
-    #   urls = [
-    #     "http://ftp.math.utah.edu/pub/tex/historic/systems/texlive/${year}/texlive-${year}0308-source.tar.xz"
-    #     "ftp://tug.ctan.org/pub/tex/historic/systems/texlive/${year}/texlive-${year}0308-source.tar.xz"
-    #   ];
+    #   url = "mirror://texhistoric/systems/texlive/${year}/texlive-${year}0308-source.tar.xz";
     #   hash = "sha256-//2xo9FDwXekOYoiKaQNaojxgJjl9tz9V2SMnyQXSQ8=";
     # };
 

pkgs/tools/typesetting/tex/texlive/default.nix

@@ -154,8 +154,7 @@ let
         [
           # tlnet-final snapshot; used when texlive.tlpdb is frozen
           # the TeX Live yearly freeze typically happens in mid-March
-          "http://ftp.math.utah.edu/pub/tex/historic/systems/texlive/${toString version.texliveYear}/tlnet-final"
-          "ftp://tug.org/texlive/historic/${toString version.texliveYear}/tlnet-final"
+          "mirror://texhistoric/systems/texlive/${toString version.texliveYear}/tlnet-final"
         ]
       else
         [