Limit series produced by TraceQL Metrics

[joe-elliott]

Create a global limit for the number of series produced by TraceQL metrics. If the number of metrics are trimmed it would be ideal to include a message about the cutoff.

I don't think this needs to be per tenant. Tenants of any size can easily generate extremely high series TraceQL metrics queries.

[github-actions]

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[ie-pham]

#4525