Bump undefsafe from 2.0.2 to 2.0.5 in /node-crash-course

Bumps [undefsafe](https://github.com/remy/undefsafe) from 2.0.2 to 2.0.5.
- [Release notes](https://github.com/remy/undefsafe/releases)
- [Commits](remy/undefsafe@v2.0.2...v2.0.5)

---
updated-dependencies:
- dependency-name: undefsafe
  dependency-type: indirect
...

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Author: dependabot[bot]