next.js

1ee83091 - fix(next-codemod): get package manager is inconsistent in monorepo (#70983)

fix(next-codemod): get package manager is inconsistent in monorepo (#70983) ### Why? Uses `npm add` on pnpm workspace as whenever error occurs during the process, it uses `npm` which may not be consistent.  ### How? Use `find-up` to traverse and look for lock files.