Bump ray[default] from 2.7.1 to 2.8.0

Bumps [ray[default]](https://github.com/ray-project/ray) from 2.7.1 to 2.8.0.
- [Release notes](https://github.com/ray-project/ray/releases)
- [Commits](ray-project/ray@ray-2.7.1...ray-2.8.0)

---
updated-dependencies:
- dependency-name: ray[default]
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

pyproject.toml

@@ -15,7 +15,7 @@ classifiers=[
 ]
 dependencies = [
     "caikit>=0.15.0,<0.25.0",
-    "ray[default]==2.7.1"
+    "ray[default]==2.8.0"
 ]
 
 [project.scripts]