Make a cron expression in documentation a valid quartz expression

[ctdio]

Proposed changes

Small fix doc fix for a minor issue I noticed while following the docs for adding a schedule to a workflow. The cron expression in deployment.md isn't a valid quartz cron expression, this fixes that.

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices apply)

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