Changes to Get Project Metrics

added the new guardrail_name enum value to the request property breakdown/field

added the new in enum value to the request property span_filters/items/operator

added the new in enum value to the request property thread_filters/items/operator

added the new in enum value to the request property trace_filters/items/operator

added the new not_in enum value to the request property span_filters/items/operator

added the new not_in enum value to the request property thread_filters/items/operator

added the new not_in enum value to the request property trace_filters/items/operator

removed the enum value in of the request property span_filters/items/operator

removed the enum value in of the request property thread_filters/items/operator

removed the enum value in of the request property trace_filters/items/operator

removed the enum value not_in of the request property span_filters/items/operator

removed the enum value not_in of the request property thread_filters/items/operator

removed the enum value not_in of the request property trace_filters/items/operator