Update usage information metrics for v2023.4

[matthew-white]

Usage information metrics to add/remove/update

• Add metrics for the following:
  • Is SSO enabled? (1/0)
  • Number of client audit submission attachments that have been uploaded (that have an associated blob)
  • Number of client audit submission attachments that have been uploaded and are unencrypted, yet have not been processed (there is no associated row in client_audits) that have failed processing (easier to calculate)
  • Number of processed client audit rows (client_audits)
  • Number of audit log events that failed at least once
  • Number of audit log events that completely failed (failed 5+ times)
  • Number of audit log events that are unprocessed despite being logged more than a day ago
• Remove the following metrics:
  • (none)

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Checklist

• Update the form version string in the Backend config.
• Publish the new form version on data.getodk.cloud.
• Update the usage report in Frontend.

[ktuite]

Backend PR: getodk/central-backend#964
Frontend PR: getodk/central-frontend#847

Just updated the form and made stubs of the new values - haven't filled them in yet. Wanted to double-check if the client audit counts were meant to be split by project or be system-wide.