fix: concurrent function pipeline using new KCL versions

[Peefy]

Description of your changes

re #68

I have:

• [x] Read and followed Crossplane's contribution process.
• [x] Added or updated unit tests for my change.

[Peefy]

cc @zong-zhe This is an WIP PR, and we still need to investigate the symlink issue with kpm multithreading running concurrently.