Description:

When running `ncu`, it throws an error
```
node:internal/modules/cjs/loader:936
throw err;
^

Error: Cannot find module '../../package.json'
Require stack:
- /usr/lib/node_modules/npm-check-updates/build/src/bin/cli.js
at Function.Module._resolveFilename (node:internal/modules/cjs/loader:933:15)
at Function.Module._load (node:internal/modules/cjs/loader:778:27)
at Module.require (node:internal/modules/cjs/loader:999:19)
at require (node:internal/modules/cjs/helpers:102:18)
at Object.<anonymous> (/usr/lib/node_modules/npm-check-updates/build/src/bin/cli.js:11:40)
at Module._compile (node:internal/modules/cjs/loader:1097:14)
at Object.Module._extensions..js (node:internal/modules/cjs/loader:1149:10)
at Module.load (node:internal/modules/cjs/loader:975:32)
at Function.Module._load (node:internal/modules/cjs/loader:822:12)
at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12) {
code: 'MODULE_NOT_FOUND',
requireStack: [ '/usr/lib/node_modules/npm-check-updates/build/src/bin/cli.js' ]
}

Node.js v17.1.0
```

It appears that it's trying to find it's own package.json file using a relative path. In the repo and source tarball, `cli.{ts,js}` is `src/bin/` but in the package this is `build/src/bin` causing the relative path to be different. Copying the packages.json into the `build` directory fixes the problem but I don't know what's the correct fix....

Additional info:
* package version(s) 12.0.2
* config and/or log files etc.
* link to upstream bug report, if any

Steps to reproduce:
Just run `ncu` command.