chore(deps): update dependency ts-jest to v26.5.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
ts-jest (source)	26.4.4 -> 26.5.0

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Release Notes

kulshekhar/ts-jest

### [`v26.5.0`](https://togithub.com/kulshekhar/ts-jest/blob/master/CHANGELOG.md#​2650-httpsgithubcomkulshekharts-jestcomparev2650v2644-2021-01-29) [Compare Source](https://togithub.com/kulshekhar/ts-jest/compare/v26.4.4...v26.5.0) ##### Bug Fixes - reduce size of `node_modules` when adding `ts-jest` ([#​2309](https://togithub.com/kulshekhar/ts-jest/issues/2309)) ([6bf2e8a](https://togithub.com/kulshekhar/ts-jest/commit/b8d5d2090567f23947d9efd87f5f869b16bf2e8a)) ##### Features - introduce `exclude` to exclude files from diagnostics ([#​2308](https://togithub.com/kulshekhar/ts-jest/issues/2308)) ([cd82fd3](https://togithub.com/kulshekhar/ts-jest/commit/0c555c250774a7fd9e356cf20a3d8b693cd82fd3))

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