LibHeif 1.17.0 support

[bigcat88]

Fixes:

/home/runner/work/pillow_heif/pillow_heif/tests/numpy_test.py:24: in <module>
    im_heif.save(heif_buf)
/home/runner/work/pillow_heif/pillow_heif/pillow_heif/heif.py:341: in save
    _encode_images(self._images, fp, **kwargs)
/home/runner/work/pillow_heif/pillow_heif/pillow_heif/heif.py:554: in _encode_images
    ctx_write.save(fp)
/home/runner/work/pillow_heif/pillow_heif/pillow_heif/misc.py:370: in save
    data = self.ctx_write.finalize()
E   ValueError: heif_writer callback returned a null error text

This error happens with libheif 1.17.0

[bigcat88]

o_O

[bigcat88]

Premultiplied alpha tests fails due to bug in new libheif: strukturag/libheif#993

[bigcat88]

NCLX profile test discussion lives here: Problem with saving NCLX profile

Good that from next version output_nclx_profile will be used that will fix a bug that I did not know even existed.

Anyway version 1.17.0 will be skipped(as it was with 1.15.0/1.16.0) and this PR will wait 1.17.1 version.