Array: small typo in hash function

**Your Godot version:**
4.5.1 stable

**Issue description:**
A typo exists in the documentation of the `hash ` function for `arrays`. 
Under **Note:** it says "On the **countrary**, [...]", which probably meant to say "On the contrary, [...]"

**URL to the documentation page:**
https://docs.godotengine.org/en/stable/classes/class_array.html#class-array-method-hash