fix(deps): update dependency webtorrent to v1.5.6

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
webtorrent (source)	1.5.5 -> 1.5.6

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Release Notes

webtorrent/webtorrent

### [`v1.5.6`](https://togithub.com/webtorrent/webtorrent/blob/master/CHANGELOG.md#​156-httpsgithubcomwebtorrentwebtorrentcomparev155v156-2021-10-05) [Compare Source](https://togithub.com/webtorrent/webtorrent/compare/v1.5.5...v1.5.6) ##### Bug Fixes - http-node git location ([67ddac0](https://togithub.com/webtorrent/webtorrent/commit/67ddac03bc02e2923ec30af7054745a395d0280c))

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