Please activate documentation for Turkish language

**Your Godot version:**

should not matter.

**Issue description:**

Last few months, I was translating Godot on Weblate. I had completed editor and properties components, left the class references for when I complete docs. I had 20+% rate for documentation before the latest additions for 4.x.

I don't know how fast you fetch translations from Weblate and integrate into docs, but I see the languages are enabled in `conf.py` with `supported_languages` dictionary (line 100). So please activate Turkish in there:

```
"tr": "Godot Engine %s Türkçe belgeler",
```

PS: I see readthedocs makes daily builds. Does that also mean you fetch from Weblate daily?

**URL to the documentation page (if already existing):**

unfortunately none exists yet