[GR-74718] Update vendored XZ/liblzma to 5.8.3#728

graalvmbot wants to merge 1 commit intomasteroracle/graalpython:masterfrom

agent-shell/update-remove-xz-5-6-2-in-graalpyoracle/graalpython:agent-shell/update-remove-xz-5-6-2-in-graalpyCopy head branch name to clipboard