Update Describe params to be optional (#53)

when using the array format to describe the config, allow all of the array keys to be optional so that you don't have to define them all just to pass static analysis.

Author: mintbridge

src/Describe.php

@@ -219,8 +219,8 @@ class Describe
      *  }
      *  ```
      *
-     * @param  string|array{'from': string,'pre': string|string[], 'cast': string|string[], 'post': string|string[], 'required': bool, 'default': mixed, 'nullable': bool,
-     *                                            'ignore': bool, 'via': string}|null  $attributes
+     * @param  string|array{'from'?: string, 'pre'?: string|string[], 'cast'?: string|string[], 'post'?: string|string[], 'required'?: bool, 'default'?: mixed, 'nullable'?: bool,
+     *                                            'ignore'?: bool, 'via'?: string}|null  $attributes
      *
      * @link https://github.com/zero-to-prod/data-model
      *
@@ -312,4 +312,4 @@ public function __construct(string|null|array $attributes = null)
             }
         }
     }
-}
+}