Bump phpseclib/phpseclib from 2.0.42 to 2.0.47

Bumps [phpseclib/phpseclib](https://github.com/phpseclib/phpseclib) from 2.0.42 to 2.0.47.
- [Release notes](https://github.com/phpseclib/phpseclib/releases)
- [Changelog](https://github.com/phpseclib/phpseclib/blob/master/CHANGELOG.md)
- [Commits](phpseclib/phpseclib@2.0.42...2.0.47)

---
updated-dependencies:
- dependency-name: phpseclib/phpseclib
  dependency-type: direct:production
...

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