fix: try final.buildPackages.perl for perl.mini cross-compile fix

flake.nix

@@ -73,7 +73,7 @@
           mesonFlags = (old.mesonFlags or []) ++ [ "-Dskip_gtk_tests=true" ];
         });
         hyprland = prev.hyprland.override { wrapRuntimeDeps = false; };
-        perl = prev.perl // { mini = prev.buildPackages.perl; };
+        perl = prev.perl // { mini = final.buildPackages.perl; };
         boost = prev.boost.override { useMpi = false; };
         # perl-ldap cannot cross-compile (Module::Install needs dynamic loading)
         perlPackages.LDAP = prev.perlPackages.LDAP.overrideAttrs (_: { perl = null; });