chore(deps): bump graphiti-core in the uv group across 1 directory (#480)

Bumps the uv group with 1 update in the / directory: [graphiti-core](https://github.com/getzep/graphiti).


Updates `graphiti-core` from 0.28.1 to 0.28.2
- [Release notes](https://github.com/getzep/graphiti/releases)
- [Commits](getzep/graphiti@v0.28.1...v0.28.2)

---
updated-dependencies:
- dependency-name: graphiti-core
  dependency-version: 0.28.2
  dependency-type: direct:production
  dependency-group: uv
...

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

Author: dependabot[bot]