fix(deps): update dependency webtorrent to v1.5.4

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
webtorrent (source)	1.5.3 -> 1.5.4

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Release Notes

webtorrent/webtorrent

### [`v1.5.4`](https://togithub.com/webtorrent/webtorrent/blob/master/CHANGELOG.md#​154-httpsgithubcomwebtorrentwebtorrentcomparev153v154-2021-08-25) [Compare Source](https://togithub.com/webtorrent/webtorrent/compare/v1.5.3...v1.5.4) ##### Bug Fixes - handle done event when new files selected ([#​2183](https://togithub.com/webtorrent/webtorrent/issues/2183)) ([c543788](https://togithub.com/webtorrent/webtorrent/commit/c5437886086f455c61f0ff71bbfecd3f9e6b2609))

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