Add group actor check for feature flag

What does this MR do and why?

Adds the missing group actor to the feature flag check in #388286 (closed)

• Adds a data-testid to the vue template
• Adds a feature spec to test the flag enabled / disabled state

Screenshots or screen recordings

No visual changes

How to set up and validate locally

$ rspec ./ee/spec/features/groups/analytics/cycle_analytics/filters_and_data_spec.rb:

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 #388286 (closed)