Update stats CSV for the new dashboard

Created a new dashboard (with the same go link, go/ravenwood-stats)
which is a pivot table that supports drill-down into methods.

Updated the CSV to support it.

Bug: 402797626
Test: Manual test with importing data and browsing go/ravenwood-stats
Flag: EXEMPT host tool change only

Change-Id: Ia23c0fae7fc6a096565e9902fafab0a4a3ea3067