chore(deps): bump piccolo from 0.119.0 to 1.1.1 in /backend

Bumps [piccolo](https://github.com/piccolo-orm/piccolo) from 0.119.0 to 1.1.1.
- [Release notes](https://github.com/piccolo-orm/piccolo/releases)
- [Changelog](https://github.com/piccolo-orm/piccolo/blob/master/CHANGES.rst)
- [Commits](piccolo-orm/piccolo@0.119.0...1.1.1)

---
updated-dependencies:
- dependency-name: piccolo
  dependency-type: direct:production
...

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