Decide the approach for PNPM audit and how to integrate it into CI

Pnpm audit seems to cause issues with version mismatching when trying to fix it and new issues come up quite frequently. So it's been removed for now, and this ticket is to decide how to reimplement it without it slowing down development too much.

Start by reviewing the repository's current CI configuration and PNPM setup, since the issue names no specific files or tests. Compare ways to reintroduce PNPM audit without blocking development, and consider the version-mismatch and frequently changing findings described in the issue. Done means the team has agreed on an integration approach.

Written by the indexing model from the issue text.