fix(deps): update dependency @azure/functions to v4.4.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@azure/functions	4.3.0 -> 4.4.0

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Release Notes

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

### [`v4.4.0`](https://togithub.com/Azure/azure-functions-nodejs-library/releases/tag/v4.4.0) [Compare Source](https://togithub.com/Azure/azure-functions-nodejs-library/compare/v4.3.0...v4.4.0) ##### Added - Support for params when using preview [http streams](https://aka.ms/AzFuncNodeHttpStreams) feature [#​229](https://togithub.com/Azure/azure-functions-nodejs-library/issues/229) - Support for SQL trigger [#​88](https://togithub.com/Azure/azure-functions-nodejs-library/issues/88) ##### Changed - The values of some system-generated request headers have changed when using the preview [http streams](https://aka.ms/AzFuncNodeHttpStreams) feature. These values should now match the behavior when *not* using http streams.

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