Clean up the SafelyChangeColumnDefault in workspace

What does this MR do and why?

Clean up the SafelyChangeColumnDefault in workspace## Screenshots or screen recordings

• Related to #427265 (closed)
• Using https://docs.gitlab.com/ee/development/database/avoiding_downtime_in_migrations.html#changing-column-defaults
• Previous MR Set force_include_all_resources to default true... (#427122 - closed)

How to set up and validate locally

No need

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