fix(deps): update dependency web-push to v3.3.4

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	References
web-push	dependencies	patch	3.3.3 -> 3.3.4	source

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Release Notes

web-push-libs/web-push

### [`v3.3.4`](https://togithub.com/web-push-libs/web-push/compare/v3.3.3...v3.3.4) [Compare Source](https://togithub.com/web-push-libs/web-push/compare/v3.3.3...v3.3.4)

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Renovate configuration

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:recycle: Rebasing: Whenever PR becomes conflicted, or if you modify the PR title to begin with "rebase!".

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[renovate[bot]]

Branch automerge failure

This PR was configured for branch automerge, however this is not possible so it has been raised as a PR instead.

[coveralls]

Coverage remained the same at 80.638% when pulling c8715346a4fd0afeae948d12c2a194d6c7b15f87 on renovate/web-push-3.x into a2fd5933727632154bd979d10500c85e2446170a on master.