chore(deps): update dependency @types/jest to v23.3.12

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	References
@​types/jest	devDependencies	patch	23.3.10 -> 23.3.12	source

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[coveralls]

Coverage remained the same at 100.0% when pulling 33594a4702a2cffcf25abe6879dde91f849c9cb6 on renovate/jest-23.x into 6219a7c02630f4eaa80b70584503e1cfef5f0720 on master.