JsonSerializer.Deserialize<JsonNode> does not honor MaxDepth for deeply nested arrays

[steveisok]

Description

When deserializing a JSON payload containing many nested arrays into JsonNode, JsonSerializer.Deserialize<JsonNode> appears to either return a valid node or take an unexpectedly long time, rather than throwing once JsonSerializerOptions.MaxDepth is exceeded.

Repro

using System.Linq;
using System.Text.Json;
using System.Text.Json.Nodes;

string json = string.Concat(Enumerable.Repeat("[", 200))
            + string.Concat(Enumerable.Repeat("]", 200));

var options = new JsonSerializerOptions { MaxDepth = 32 };
var node = JsonSerializer.Deserialize<JsonNode>(json, options);
Console.WriteLine(node is null ? "null" : "non-null");

Expected

JsonException with a "Maximum depth exceeded" message.

Actual

The call either returns a non-null JsonNode or takes several seconds.

Notes

A regression test in the existing JsonNode test class would be appreciated.