chore(deps): update @testing-library/jest-dom to v6.8.0 #1309

Job	Run time
Prepare CI	3s
Lint App / biomejs	29s
Tests / Run Tests	2m 26s
Tests / SonarQube Cloud Analysis	58s
Build / Build macOS (electron-builder)	3m 44s
Build / Build Linux (electron-builder)	4m 7s
Build / Build Windows (electron-builder)	2m 32s
	14m 19s

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