[Bug]: MinLength attribute on a dictionary property generates invalid minLength constraint

### Describe the bug I have a model class with a dictionary property. At request time, I want to require the dictionary be non-empty. MVC supports doing that via the `[MinLength]` attribute: ```csharp [Required] [MinLength(1)] public IReadOnlyDictionary<string, string?> Values { get; } ``` However, Swashbuckle then applies `"minLength": 1` to the schema definition instead of `"minProperties": 1`. ### Expected behavior The generated OpenAPI document includes `"minProperties": 1` for the `Values` schema. ### Actual behavior The generated OpenAPI document includes `"minLength": 1` for the `Values` schema. ### Steps to reproduce ```csharp public class MyModel { [Required] [MinLength(1)] public IReadOnlyDictionary<string, string?> Values { get; init; } } [ApiController] public class MyController { [HttpPost] public void MyAction([FromBody] MyModel model) { } } ``` ### Exception(s) (if any) _No response_ ### Swashbuckle.AspNetCore version 10.1.7 ### .NET Version 10.0.202 ### Anything else? This was found by running the `vacuum` linter against the generated OpenAPI document.