Bump pyyaml from 5.1 to 5.1.2
Bump pyyaml from 5.1 to 5.1.2

Bumps [pyyaml](https://github.com/yaml/pyyaml) from 5.1 to 5.1.2.
- [Release notes](https://github.com/yaml/pyyaml/releases)
- [Changelog](https://github.com/yaml/pyyaml/blob/master/CHANGES)
- [Commits](https://github.com/yaml/pyyaml/compare/5.1...5.1.2)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
pudo/aleph,alephdata/aleph,alephdata/aleph,pudo/aleph,alephdata/aleph,pudo/aleph,alephdata/aleph,alephdata/aleph