Replace liblz4-tool with lz4 package

debian/control

@@ -5,7 +5,7 @@ Maintainer: ale <ale@incal.net>
 Build-Depends: debhelper-compat (= 13),
                dh-golang,
                golang-any (>= 1.10),
-               liblz4-tool,
+               lz4,
                restic
 Standards-Version: 3.9.6
 XS-Go-Import-Path: git.autistici.org/ai3/tools/tabacco