fix(cli): allows extracting files without separate directory entries

Some zip files do not list directories separately from files. For example, a zip might contain `dir/file.txt` without a corresponding entry for just `dir/`. This should be okay, so we just create the leading paths for the files we extract as necessary.

Also adds tests for the expected and dangerous path cases of `extract_zip`.

packages/cli/Cargo.toml

@@ -97,3 +97,6 @@ plugin = ["mlua"]
 [[bin]]
 path = "src/main.rs"
 name = "dx"
+
+[dev-dependencies]
+tempfile = "3.3"