fix(testing): jest batch mode improvements

[barbados-clemens]

Current Behavior

sometimes when running with jest batch mode process will hang even after running all the tests
(an issue where the process would exit before the complete message could be sent to the parent )

Expected Behavior

process doesn't hang

correct time calcuations

Related Issue(s)

Fixes #

[vercel]

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Name	Status	Preview	Comments	Updated
nx-dev	✅ Ready (Inspect)	Visit Preview	💬 Add your feedback	Jan 27, 2023 at 4:57PM (UTC)

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✅ Successfully ran 8 targets

• nx run-many -t e2e-macos --parallel=1 --exclude=e2e-detox
• nx affected --target=e2e --base=8d517752d35c35f94f0a733839c68eeef5d8446b --head=eead5417331bddce7eba5e067f4b68fcc5b45248 --exclude=e2e-storybook,e2e-storybook-angular --parallel=1
• nx affected --target=test --base=8d517752d35c35f94f0a733839c68eeef5d8446b --head=eead5417331bddce7eba5e067f4b68fcc5b45248 --parallel=1
• nx affected --target=build --base=8d517752d35c35f94f0a733839c68eeef5d8446b --head=eead5417331bddce7eba5e067f4b68fcc5b45248 --parallel=3
• nx run-many -t root-lint check-imports check-commit check-lock-files depcheck --parallel=1 --no-dte
• nx affected --target=lint --base=8d517752d35c35f94f0a733839c68eeef5d8446b --head=eead5417331bddce7eba5e067f4b68fcc5b45248 --parallel=3
• nx-cloud record -- nx format:check --base=8d517752d35c35f94f0a733839c68eeef5d8446b --head=eead5417331bddce7eba5e067f4b68fcc5b45248
• nx documentation --no-dte

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[github-actions]

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