chore(deps): update dependency @types/chai to v4.3.16

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@types/chai (source)	4.3.15 -> 4.3.16

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[codeclimate[bot]]

Code Climate has analyzed commit d641a19f and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (85% is the threshold).

This pull request will bring the total coverage in the repository to 95.3% (0.0% change).

View more on Code Climate.