repro of egoist/tsup#485
"And somehow cjs_shim.js is introduced in cjs build (still I haven't figured out why)"
pnpm install
cd packages/a
pnpm build
packages/a/dist/index.js has an unused importMetaUrlShim
"And somehow cjs_shim.js is introduced in cjs build (still I haven't figured out why)"
pnpm install
cd packages/a
pnpm build
packages/a/dist/index.js has an unused importMetaUrlShim