test(angular-query-experimental/injectQueries): switch to fake timers, replace 'setTimeout' with 'sleep', replace 'findByText' with 'getByText', add 'toBeInTheDocument', remove unused 'toString' method, rename '_pushResults' to '_', and add '@testing-library/jest-dom/vitest'

test(angular-query-experimental/injectQueries): switch to fake timers, replace 'setTimeout' with 'sleep', replace 'findByText' with 'getByText', add 'toBeInTheDocument', remove unused 'toString' method, rename '_pushResults' to '_', and add '@testing-library/jest-dom/vitest' #7548