918eb4 groups.d/251.native_packages_lib.d/libunistring.package: bump to v1.3

Authored and Committed by Redfoxmoon a month ago
    groups.d/251.native_packages_lib.d/libunistring.package: bump to v1.3
    
    Signed-off-by: Ørjan Malde <red@foxi.me>