Allow personal namespaces to use aggregated VSA

What does this MR do and why?

When visiting the Analytics page of a personal namespace project, the data collection notice is the only thing to see.

https://your.local.gitlab.instance/user/greatproject/-/value_stream_analytics

Allow personal namespaces to use aggregated VSA

Changelog: changed EE: true

Screenshots or screen recordings

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Before	After

How to set up and validate locally

p = Project.find(25) # a personal namespace project
aggregation = Analytics::CycleAnalytics::Aggregation.safe_create_for_namespace(p.project_namespace)
service = Analytics::CycleAnalytics::AggregatorService.new(aggregation: aggregation)
result = service.execute

Visiting https://your.local.gitlab.instance/user/greatproject/-/value_stream_analytics

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related to #419854 (closed)