Update dependency ts-jest to v26.5.4

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
ts-jest (source)	26.5.1 -> 26.5.4

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Release Notes

kulshekhar/ts-jest

v26.5.4

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Bug Fixes

• compiler: initialize compiler with .ts/.tsx/.d.ts files only (#​2457) (1dc731a), closes #​2445

v26.5.3

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Bug Fixes

• config: create fallback jest config when jest config is undefined (#​2421) (0fb6b45), closes #​2085
• remove @types/jest from direct dep (#​2416) (060302e), closes #​2406 #​2411
• compiler: return original file content on emit skip (#​2408) (cfba8f4), closes #​2407

v26.5.2

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Bug Fixes

• compiler: exclude files in outDir from compiler source files (#​2376) (9034677), closes #​2350 #​2374
• config: define matchTestFilePath before setupTsJestCfg (#​2373) (c427fea), closes #​2371
• config: improve emit skipped error message (#​2357) (f2808bb)
• typings: set correct typing for tsconfig/tsConfig option (#​2377) (d4f6aff), closes #​2368

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