Log Message:
py-pillow_heif: updated to 0.15.0

0.15.0

Added

- `libheif_info` function: added `encoders` and `decoders` keys to the result, \ 
for future libheif plugins support.
- `options.PREFERRED_ENCODER` - to use `encoder` different from the default one.
- `options.PREFERRED_DECODER` - to use `decoder` different from the default one.

Changed

- libde265 updated from `1.0.14` to `1.0.15`.
- libheif updated from `1.17.5` to `1.17.6`.