software/dufs: add missing --locked to make software reproducible

https://github.com/rust-lang/cargo/issues/7169

https://doc.rust-lang.org/nightly/cargo/commands/cargo-install.html#dealing-with-the-lockfile

software/dufs/software.cfg

@@ -16,7 +16,7 @@ shared = true
 url = https://github.com/sigoden/dufs/archive/refs/tags/v0.34.1.tar.gz
 md5sum = 77cbb2523aca8dad90fd77ee0277704f
 configure-command = :
-make-binary = cargo install --root=%(location)s --path .
+make-binary = cargo install --root=%(location)s --path . --locked
 make-targets =
 environment =
   PATH=${rustc:location}/bin:%(PATH)s