docs: hillshade-illumination-direction is documented as a closed range [0,359] but should actually be a half open range [0,360)

[sargunv]

Describe the bug

(unsure if misleading documentation counts as a "bug" but it seems fitting)

The hillshade-illumination-direction property is documented as a closed range [0,359] but should actually be a half open range [0,360), because it's a floating point value; 359.5 is a valid value. I saw this while working on maplibre-compose and assumed it only accepts integer degrees, only to check the source code and realize it accepts floats.

Looking at the JSON style spec, I don't think it supports a way to define a half open range with a real number maximum, so it's not actually a trivial fix to the docs.

maplibre-style-spec/src/reference/v8.json

Lines 6414 to 6435 in 7604485

	"hillshade-illumination-direction": {
	"type": "number",
	"default": 335,
	"minimum": 0,
	"maximum": 359,
	"doc": "The direction of the light source used to generate the hillshading with 0 as the top of the viewport if `hillshade-illumination-anchor` is set to `viewport` and due north if `hillshade-illumination-anchor` is set to `map`.",
	"transition": false,
	"sdk-support": {
	"basic functionality": {
	"js": "0.43.0",
	"android": "6.0.0",
	"ios": "4.0.0"
	}
	},
	"expression": {
	"interpolated": true,
	"parameters": [
	"zoom"
	]
	},
	"property-type": "data-constant"
	},

[HarelM]

Yup, the docs are generated from the v8 file, and the v8 content syntax is not great.
Feel free to try and heck it...