Update dependency firebase-functions-test to v3.3.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
firebase-functions-test	3.2.0 -> 3.3.0

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Release Notes

firebase/firebase-functions-test (firebase-functions-test)

### [`v3.3.0`](https://togithub.com/firebase/firebase-functions-test/releases/tag/v3.3.0) [Compare Source](https://togithub.com/firebase/firebase-functions-test/compare/v3.2.0...v3.3.0) - Add support for v2 callable functions ([#​229](https://togithub.com/firebase/firebase-functions-test/issues/229)).

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