Bump tmp and inquirer in /graaljs/graaljs-webpack-guide/src/main/js

Removes [tmp](https://github.com/raszi/node-tmp). It's no longer used after updating ancestor dependency [inquirer](https://github.com/SBoudrias/Inquirer.js). These dependencies need to be updated together.


Removes `tmp`

Updates `inquirer` from 8.2.6 to 8.2.7
- [Release notes](https://github.com/SBoudrias/Inquirer.js/releases)
- [Commits](https://github.com/SBoudrias/Inquirer.js/compare/[email protected]@8.2.7)

---
updated-dependencies:
- dependency-name: tmp
  dependency-version: 
  dependency-type: indirect
- dependency-name: inquirer
  dependency-version: 8.2.7
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]