fix: fix to unix permissions with 7z

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@drop-oss/droplet",
-  "version": "3.2.0",
+  "version": "3.2.1",
   "main": "index.js",
   "types": "index.d.ts",
   "napi": {

src/version/backends.rs

@@ -183,7 +183,7 @@ impl VersionBackend for ZipVersionBackend {
       }
       results.push(VersionFile {
         relative_filename: name.to_owned().to_owned(),
-        permission: 0,
+        permission: 744, // owner r/w/x, everyone else, read
         size: size.parse().unwrap(),
       });
     }