feat: add shutdown hook

[edusperoni]

Related issue (if exists)

#3158

Summary

This solves the issue with Angular's Sass plugin (see linked issue)

🤖 Generated by Copilot at 744b01b

Added a shutdown hook for compiler plugins and improved error handling in compiler.ts. This enables plugins to release resources and avoid cache corruption.

Walkthrough

🤖 Generated by Copilot at 744b01b

• Add a new shutdown hook to the Compiler class that allows plugins to perform cleanup or finalization tasks (link, link)
• Modify the close method of the Compiler class to accept an error argument in the callback function and propagate any errors from the shutdown process (link, link)
• Invoke the shutdown hook before closing the cache in the close method and only shut down the cache if no errors are reported (link)