Log Message:
py-Willow: updated to 1.7.0

v1.7.0
Test with Python 3.12
Add optional dependencies for Pillow/Wand
test_wand.py: fix typo in test skip
test_image.py: replace wrong unicdoe character
Tidy up testing linting deps
Replace the wrong unicode character in the image/heic mime type
Preserve ICC profiles and EXIF metadata when saving to PNG, WebP, AVIF
This will help preserve colours and image orientation when resaving to a \ 
different format