pyxel.sqrt(0) returns incorrect result
The square root of 0 should be 0. However, `pyxel.sqrt(0)` returns 1.7976931348623157e+308 (largest possible float?) instead.

```
>>> import math
>>> math.sqrt(0)
0.0
>>> import pyxel
>>> pyxel.sqrt(0)
1.7976931348623157e+308
```

I am using Pyxel version 1.9.13, Python 3.10. Running Arch Linux (everything up-to-date). Reproducible using my spare laptop (Artix) and in Windows 11.