fix(deps): update dependency @azure/functions to v4.1.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@azure/functions	4.0.1 -> 4.1.0

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Release Notes

Azure/azure-functions-nodejs-library (@​azure/functions)

### [`v4.1.0`](https://togithub.com/Azure/azure-functions-nodejs-library/releases/tag/v4.1.0) [Compare Source](https://togithub.com/Azure/azure-functions-nodejs-library/compare/v4.0.1...v4.1.0) ##### Added - Pre-invocation, post-invocation, app-start, and app-terminate hooks using `app.hook.` [#​7](https://togithub.com/Azure/azure-functions-nodejs-library/issues/7) - Warmup trigger [#​176](https://togithub.com/Azure/azure-functions-nodejs-library/issues/176) - `connection` property to EventGridOutputOptions [#​177](https://togithub.com/Azure/azure-functions-nodejs-library/issues/177) ##### Fixed - Bug where output isn't set if used in both `extraOutput` and `return` [#​179](https://togithub.com/Azure/azure-functions-nodejs-library/issues/179)

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