SDImageIOAnimatedCoder Crash ! Happened between iOS14 and iOS15.0.1

[cheng-ren]

New Issue Checklist

• [x] I have read and understood the CONTRIBUTING guide
• [x] I have read the Documentation
• [x] I have searched for a similar issue in the project and found none

Issue Info

Info	Value
Platform Name	iOS
Platform Version	14.0~15.0.1
SDWebImage Version	5.15.7
Integration Method	cocoapods
Xcode Version	Xcode13
Repro rate	sometimes 3%
Repro with our demo prj	does it happen with our demo project?

Issue Description and Steps

+[SDImageIOAnimatedCoder createFrameAtIndex:source:scale:preserveAspectRatio:thumbnailSize:lazyDecode:animatedImage:] + [SDImageIOAnimatedCoder.m : 234]

[cheng-ren]

[dreampiggy]

Dupliacted, Apple's bug.

The AdobeXMP is a C++ static variable with custom de-constrcutor, and has thread-safe when your process eixt.

This does not has any visible effect on user. So don't solve.