Bump keras from 2.2.4 to 2.2.5
Bump keras from 2.2.4 to 2.2.5

Bumps [keras](https://github.com/keras-team/keras) from 2.2.4 to 2.2.5.
- [Release notes](https://github.com/keras-team/keras/releases)
- [Commits](https://github.com/keras-team/keras/compare/2.2.4...2.2.5)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
materialsvirtuallab/veidt