Update all Yarn dependencies (2020-09-11)

[depfu]

This is your weekly update of all Yarn dependencies. Please take a good look at what changed and the test results before merging this pull request.

What changed?

✳️ typescript (3.9.6 → 4.0.2, major) · Repo · Release · Diff

✳️ tsdx (0.13.2 → 0.13.3, minor) · Repo · Release · Diff

✳️ tslib (2.0.0 → 2.0.1, patch) · Repo · Release · Diff

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[flybayer]

@Skn0tt looks like TS4 reveal a few type errors that need fixed. You can checkout this branch, fix them, push to this branch, and then merge when CI passing

[Skn0tt]

This is an error in typescript-eslint, see jaredpalmer/tsdx#810. Running yarn tsc does not reveal any new errors. We'll just wait for that issue to be resolved :D