Log Message:
exiv2: update to 0.27.4.

Exiv2 v0.27.4 Features

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