tsup is not working with `npx`

```
npx tsup x.js --dts --format esm
⠙
Error: Cannot find module 'typescript'
Require stack:
- /Users/himself65/.npm/_npx/7d72304e626f8399/node_modules/tsup/dist/index.js
- /Users/himself65/.npm/_npx/7d72304e626f8399/node_modules/tsup/dist/chunk-CDF4QN4B.js
- /Users/himself65/.npm/_npx/7d72304e626f8399/node_modules/tsup/dist/cli-default.js
at Module._resolveFilename (node:internal/modules/cjs/loader:1145:15)
at Module._load (node:internal/modules/cjs/loader:986:27)
at Module.require (node:internal/modules/cjs/loader:1233:19)
at require (node:internal/modules/helpers:179:18)
at Object. (/Users/himself65/.npm/_npx/7d72304e626f8399/node_modules/tsup/dist/index.js:1021:19)
at Module._compile (node:internal/modules/cjs/loader:1358:14)
at Module._extensions..js (node:internal/modules/cjs/loader:1416:10)
at Module.load (node:internal/modules/cjs/loader:1208:32)
at Module._load (node:internal/modules/cjs/loader:1024:12)
at Module.require (node:internal/modules/cjs/loader:1233:19)
```

Reproduce the reported `npx tsup x.js --dts --format esm` command and inspect the stack trace entry in `tsup/dist/index.js`, where the missing `typescript` module is reported. Determine the expected dependency behavior for this invocation and verify that the command completes successfully with declaration output and ESM format.

Written by the indexing model from the issue text.