Update dependency ts-jest to v23.10.4

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This PR contains the following updates:

Package	Type	Update	Change	References
ts-jest	devDependencies	patch	23.10.3 -> 23.10.4	homepage, source

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Release Notes

kulshekhar/ts-jest

### [`v23.10.4`](https://renovatebot.com/gh/kulshekhar/ts-jest/blob/master/CHANGELOG.md#​23104httpsgithubcomkulshekharts-jestcomparev23103v23104-2018-10-06) [Compare Source](https://renovatebot.com/gh/kulshekhar/ts-jest/compare/v23.10.3...v23.10.4) ##### Bug Fixes - **cache:** adds project's dep versions to cache key ([6cacbea](https://renovatebot.com/gh/kulshekhar/ts-jest/commit/6cacbea)), closes [#​785](https://renovatebot.com/gh/kulshekhar/ts-jest/issues/785) - **cli:** change options to better reflect the new presets ([68abcfb](https://renovatebot.com/gh/kulshekhar/ts-jest/commit/68abcfb)) - **helpers:** deprecate import from ts-jest, now ts-jest/utils ([33ff29f](https://renovatebot.com/gh/kulshekhar/ts-jest/commit/33ff29f)), closes [#​782](https://renovatebot.com/gh/kulshekhar/ts-jest/issues/782) - **typings:** typo in presets definition file ([53767ab](https://renovatebot.com/gh/kulshekhar/ts-jest/commit/53767ab)) - **typings:** wrong import in preset typings + test ([94dc4e7](https://renovatebot.com/gh/kulshekhar/ts-jest/commit/94dc4e7))

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