Update tus-js-client to v2.3.2

[Acconut]

This PR upgrades the tus-js-client dependency from v1 (whose last release was ~6 years ago) to v2. v2 is not the most up-to-date version of tus-js-client but not as old as its last release (2.3.2) was about 2 years ago. You can find a list of breaking changes in the accompanying blog post, but all of them seem to be irrelevant for tus-js-client.

I also considered upgrading to v4, but since v3 tus-js-client does not Node < 12 anymore, which is explicitly supported by vimeo.js according to its package.json:

vimeo.js/package.json

Lines 46 to 48 in ef0771e

	"engines": {
	"node": ">=10"
	}