fix: enable dereference when copying module to tmp dir (#4030)

When executing the copy command, for symlinked node_modules like in the case of pnpm, the copy will treat nested folders as files which breaks the pack command. De-referencing will make sure any symlinked folders are actually dereferenced.

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[Apache 2.0 license]: https://www.apache.org/licenses/LICENSE-2.0

packages/jsii-pacmak/lib/packaging.ts

@@ -68,8 +68,8 @@ export class JsiiModule {
           args.push('--loglevel=verbose');
         }
       } else {
-        // Ensure module is copied to tmpdir to ensure parallel execution does not content on generated tarballs
-        await fs.copy(this.moduleDirectory, tmpdir);
+        // Ensure module is copied to tmpdir to ensure parallel execution does not contend on generated tarballs
+        await fs.copy(this.moduleDirectory, tmpdir, { dereference: true });
       }
 
       const out = await shell(packCommand, args, {