Bump qibo from 0.2.8 to 0.2.9 (#2430)

Bumps [qibo](https://github.com/qiboteam/qibo) from 0.2.8 to 0.2.9.
- [Release notes](https://github.com/qiboteam/qibo/releases)
- [Commits](qiboteam/qibo@v0.2.8...v0.2.9)

---
updated-dependencies:
- dependency-name: qibo
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements/requirements-qibo.txt

@@ -1 +1 @@
-qibo==0.2.8 # TODO: unpin this
+qibo==0.2.9 # TODO: unpin this