snort.org: switch downloads to SourceForge

On snort.org they only seem to keep the latest release, which is annoying.
Fixes #8065. /cc maintainer @aycanirican.

pkgs/applications/networking/ids/daq/default.nix

···
 
   src = fetchurl {
     name = "${name}.tar.gz";
-    url = "http://www.snort.org/downloads/snort/${name}.tar.gz";
+    url = "mirror://sourceforge/snort/${name}.tar.gz";
     sha256 = "0vdwb0r9kdlgj4g0i0swafbc7qik0zmks17mhqji8cl7hpdva13p";
   };
 

pkgs/applications/networking/ids/snort/default.nix

···
   
   src = fetchurl {
     name = "${name}.tar.gz";
-    url = "http://www.snort.org/downloads/snort/${name}.tar.gz";
+    url = "mirror://sourceforge/snort/${name}.tar.gz";
     sha256 = "1gmlrh9ygpd5h6nnrr4090wk5n2yq2yrvwi7q6xbm6lxj4rcamyv";
   };