Bump doctrine/orm from 2.8.4 to 2.8.5 in /symfony

Bumps [doctrine/orm](https://github.com/doctrine/orm) from 2.8.4 to 2.8.5.
- [Release notes](https://github.com/doctrine/orm/releases)
- [Commits](doctrine/orm@2.8.4...2.8.5)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]