Bump autoflake from 1.3 to 1.3.1
Bump autoflake from 1.3 to 1.3.1

Bumps [autoflake](https://github.com/myint/autoflake) from 1.3 to 1.3.1.
- [Release notes](https://github.com/myint/autoflake/releases)
- [Commits](https://github.com/myint/autoflake/compare/v1.3...v1.3.1)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
GoogleCloudPlatform/oozie-to-airflow,GoogleCloudPlatform/oozie-to-airflow