chore(core): make the JSON parser accepts trailing commas by default

[vicb]

This PR makes the JSON parser allow trailing commas by default.

I have had generators failed because of trailing commas in tsconfig.json files - see #14167 (comment) for details.

It is kind of a pain because typescript is happy with trailing commas but still Nx would complain.

With this change trailing commas would be allowed by default making the parser more lenient.

Fixes #14203

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Name	Status	Preview	Updated
nx-dev	✅ Ready (Inspect)	Visit Preview	Jan 12, 2023 at 5:42PM (UTC)

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✅ Successfully ran 5 targets

• nx affected --target=e2e --base=ba3fd62b7e4835cf7c53fad13a4b630e3127aa86 --head=5d7175c60b61ce58d333533115dd05ff01ea34d1 --exclude=e2e-storybook,e2e-storybook-angular,e2e-react-native,e2e-detox --parallel=1
• nx affected -t test lint --base=ba3fd62b7e4835cf7c53fad13a4b630e3127aa86 --head=5d7175c60b61ce58d333533115dd05ff01ea34d1 --parallel=1
• nx affected --target=build --base=ba3fd62b7e4835cf7c53fad13a4b630e3127aa86 --head=5d7175c60b61ce58d333533115dd05ff01ea34d1 --parallel=3
• nx run-many -t check-imports check-commit check-lock-files root-lint depcheck documentation --parallel=1 --no-dte
• nx-cloud record -- nx format:check --base=ba3fd62b7e4835cf7c53fad13a4b630e3127aa86 --head=5d7175c60b61ce58d333533115dd05ff01ea34d1

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[FrozenPandaz]

Thank you for your contribution! LGTM 🎉

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