build(deps): bump vine from 1.1.4 to 1.2.0 in /backend
build(deps): bump vine from 1.1.4 to 1.2.0 in /backend

Bumps [vine](https://github.com/celery/vine) from 1.1.4 to 1.2.0.
- [Release notes](https://github.com/celery/vine/releases)
- [Changelog](https://github.com/celery/vine/blob/master/Changelog)
- [Commits](https://github.com/celery/vine/compare/v1.1.4...v1.2.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
kkmsc17/smes,kkmsc17/smes,kkmsc17/smes,kkmsc17/smes,kkmsc17/smes,kkmsc17/smes