Log Message:
py-pillow_heif: update to 0.12.0.

## [0.12.0 - 2023-07-08]

This release is fully compatible with previous versions.

## Added

- (Heif) restored lost ability after `0.9.x` versions to open HDR images in \ 
10/12 bit. #96

### Changed

- `libde265`(HEIF decoder) updated from 1.0.11 to 1.0.12 version. \ 
[changelog](https://github.com/strukturag/libde265/releases/tag/v1.0.12)
- `libheif` updated to `1.16.2`.

## Fixed

- Building from source when using `apt-repository ppa:strukturag/libheif`
- (Heif) `encode` function with `stride` argument correctly saves image.
- (Heif) HeifFile class created with `from_bytes` function with `stride` \ 
argument respect `stride` value during save.
- (Heif) HeifFile class created with `from_bytes` function with `stride` \ 
argument can correctly translate to numpy array.