chore(deps): bump the agent group across 1 directory with 2 updates

Bumps the agent group with 2 updates in the / directory: [@agentica/core](https://github.com/wrtnlabs/agentica) and [openai](https://github.com/openai/openai-node).


Updates `@agentica/core` from 0.27.3 to 0.28.0
- [Release notes](https://github.com/wrtnlabs/agentica/releases)
- [Commits](wrtnlabs/agentica@v0.27.3...v0.28.0)

Updates `openai` from 4.103.0 to 5.2.0
- [Release notes](https://github.com/openai/openai-node/releases)
- [Changelog](https://github.com/openai/openai-node/blob/master/CHANGELOG.md)
- [Commits](openai/openai-node@v4.103.0...v5.2.0)

---
updated-dependencies:
- dependency-name: "@agentica/core"
  dependency-version: 0.28.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: agent
- dependency-name: openai
  dependency-version: 5.2.0
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: agent
...

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Author: dependabot[bot]