Update analytics api requests to take namespacePath param

What does this MR do and why?

This MR provides some background work in preparation for [VSA parity] Make the API endpoints configurabl... (!113327 - merged) where we will switch to using a namespacePath at both the group and project level.

This MR:

• Removes group from the analytics api requests since we will be moving to use the namespace instead
• Replaces the group_id parameter with namespace_path so we can share requests between group / project level

Screenshots or screen recordings

No user facing changes

How to set up and validate locally

• All tests + pipelines passing ✅

MR acceptance checklist

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

Related to #382492 (closed)