Update dependency @types/react to v16.3.13

[renovate]

This Pull Request updates dependency @​types/react from v16.3.12 to v16.3.13

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This PR has been generated by Renovate Bot.

[react-tether-bot]

	Messages
📖	Hey @renovate[bot], thanks for submitting a pull request! 😸
📖	🤔 Hmmm, code coverage is looking low for the whole codebase.

Coverage in All Files

File	Line Coverage	Statement Coverage	Function Coverage	Branch Coverage
src/react-tether.js	(0/0) 100%	(0/0) 100%	(0/0) 100%	(0/0) 100%
src/TetherComponent.jsx	(67/80) 84%	(67/80) 84%	(17/24) 71%	(35/46) 76%
Total	(67/80) 84%	(67/80) 84%	(17/24) 71%	(35/46) 76%

Generated by 🚫 dangerJS

[coveralls]

Pull Request Test Coverage Report for Build 154

• 0 of 0 (NaN%) changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 80.952%

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Totals
Change from base Build 152:	0.0%
Covered Lines:	67
Relevant Lines:	80

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💛 - Coveralls