chore(deps): update dependency gatsby to v3.4.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
gatsby (changelog)	3.4.0 -> 3.4.1

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Release Notes

gatsbyjs/gatsby

### [`v3.4.1`](https://togithub.com/gatsbyjs/gatsby/compare/7f197c0ac8f600a9a748992ffd5ebff19424d38a...10722585e3544fd7672c6a262198461a6968b0eb) [Compare Source](https://togithub.com/gatsbyjs/gatsby/compare/gatsby@3.4.0...gatsby@3.4.1)

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Configuration

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:vertical_traffic_light: Automerge: Enabled.

:recycle: Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

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