Description of problem:
The current version of libheif in EPEL 9 (v1.17.x) is unable to decode HEIC images generated by devices running iOS 18 and newer (e.g., iPhone 16 series), which presents as a major problem for any customer related service since iPhone has a significant market share among image traffic. 


Version-Release number of selected component (if applicable):
libheif-1.17.6

How reproducible:
Always (100%)

Steps to Reproduce:
1. Install ImageMagick and the EPEL libheif delegate: dnf install ImageMagick libheif
2. Obtain iPhone HEIC image and try to convert it: convert modern_iphone.heic output.png


Actual results:
ImageMagick fails with the following error:
Invalid input: Unspecified: Too many auxiliary image references
This error originates from the libheif decoder via the ImageMagick HEIC coder (heic.c/IsHEIFSuccess/202). In a PHP/Imagick environment, this results in an unhandled ImagickException, causing fatal errors in functions like getImageDimension() and convertImage().


Expected results:
The image should be decoded successfully. 


Additional info:
Upstream Reference: "This issue was explicitly addressed in libheif v1.18.2 (GitHub Issue #1190). The fix involved increasing the internal limit for auxiliary image references to accommodate the new HDR gain maps and depth data used in iOS 18."