[CORE-41] Update BQ spending report query to remove duplicates

[calypsomatic]

Ticket: https://broadworkbench.atlassian.net/jira/software/c/projects/CORE/boards/214
For unknown reasons, BigQuery sometimes has rows in the spending table with null project names, resulting in a single project ID receiving two results: one with and one without the project name. This causes weirdness in the UI as well as inaccurate results. This PR updates the query to ignore project name altogether when consolidating rows, since it's not used in the result.

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[kevinpalis]

LGTM

[marctalbott]

I'd recommend just removing the project name from the query entirely. We aren't using it in the results at all and the project id is sufficient to identify where the spend came from.

[calypsomatic]

I'd recommend just removing the project name from the query entirely. We aren't using it in the results at all and the project id is sufficient to identify where the spend came from.

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