Dependency Updates: Bump @genkit-ai/core from 0.5.4 to 0.5.5

Bumps [@genkit-ai/core](https://github.com/firebase/genkit/tree/HEAD/js/core) from 0.5.4 to 0.5.5.
- [Release notes](https://github.com/firebase/genkit/releases)
- [Commits](https://github.com/firebase/genkit/commits/@genkit-ai/core@0.5.5/js/core)

---
updated-dependencies:
- dependency-name: "@genkit-ai/core"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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