feat(vertexai): add name constructor for function calling schema

[cynthiajoan]

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[russellwheatley]

@cynthiajoan - We've just merged a PR that will automatically update the version_version.dart when we publish new vertexai versions. So there's a merge conflict I'm afraid 😓. Also analyse and format CI needs fixing. Other than that, LGTM.

[cynthiajoan]

@cynthiajoan - We've just merged a PR that will automatically update the version_version.dart when we publish new vertexai versions. So there's a merge conflict I'm afraid 😓. Also analyse and format CI needs fixing. Other than that, LGTM.

resolved the version