chore(mongodb): Use mongodb-ce; Enable test on darwin

`mongodb` is not built by official hydra due to license restrictions,
see:
#339 (comment).
Hence, we use the pre-built binaries given by `mongodb-ce`

nix/services/mongodb.nix

@@ -4,7 +4,7 @@ let
 in
 {
   options = {
-    package = lib.mkPackageOption pkgs "mongodb" { };
+    package = lib.mkPackageOption pkgs "mongodb-ce" { };
 
     bind = lib.mkOption {
       type = types.nullOr types.str;

test/flake.nix

@@ -38,6 +38,7 @@
             "${inputs.services-flake}/nix/services/elasticsearch_test.nix"
             "${inputs.services-flake}/nix/services/grafana_test.nix"
             "${inputs.services-flake}/nix/services/memcached_test.nix"
+            "${inputs.services-flake}/nix/services/mongodb_test.nix"
             "${inputs.services-flake}/nix/services/nginx/nginx_test.nix"
             "${inputs.services-flake}/nix/services/ollama_test.nix"
             "${inputs.services-flake}/nix/services/open-webui_test.nix"
@@ -51,10 +52,6 @@
             "${inputs.services-flake}/nix/services/tika_test.nix"
             "${inputs.services-flake}/nix/services/weaviate_test.nix"
             "${inputs.services-flake}/nix/services/zookeeper_test.nix"
-          ] ++ lib.optionals pkgs.stdenv.hostPlatform.isLinux [
-            # Due to a dependency problem, MongoDB does not build on Darwin,
-            # See https://github.com/NixOS/nixpkgs/issues/346003
-            "${inputs.services-flake}/nix/services/mongodb_test.nix"
           ]));
       };
     };