[SRM-1505] add default timeZone for formatDate

[lambry]

Issue: https://digital-vic.atlassian.net/browse/SRM-1505

What I did

• Add default timeZone for formatDate so it matches the other date formatter and avoids rare hydration missmatch warnings

Checklist

For all PR's

• I've added relevant changes to the project Readme if needed.
• I've updated the documentation site as needed.
• I have added unit tests to cover my changes (if not applicable, please state why in a comment)

For new components only

• I have added a story covering all variants
• I have checked a11y tab in storybook passes
• Any events are emitted on the event bus