graphics/exiv2: update to 0.27.4

Exiv2 v0.27.4 Features:

 1.   bmff support (.CR3, .AVIF, .HEIC, .HIF, .JXL/bmff) files.
 2.   Rewrite 0.27 bash test scripts in python.
 3.   Support for Exif 2.32 and DNG 1.6.
 4.   Crowdin Localisation Support
 5.   Completion of Image Metadata and Exiv2 Architecture https://clanmills.com/exiv2/book/
 6.   Improved documentation.
 7.   Various minor bugs and fixes.
 8.   RC3 issued to deal with 12 security issues. After 18 months without a CVE, we were attacked between RC2 and GM.
 9.   Security policy defined and published on GitHub.

PR:		256803
Exp-run by:	antoine