Merge pull request #24532 from nh2/fix-24529-acme-dir-permissions-master

acme: Use `chown -R` for challenges directory. Fixes #24529.

nixos/modules/security/acme.nix

···
                   path = [ pkgs.simp_le ];
                   preStart = ''
                     mkdir -p '${cfg.directory}'
-                    chown '${data.user}:${data.group}' '${cfg.directory}'
+                    chown -R '${data.user}:${data.group}' '${cfg.directory}'
                     if [ ! -d '${cpath}' ]; then
                       mkdir '${cpath}'
                     fi