Add time frame attribute to aggregated metric

What does this MR do?

This MR was extracted from !53854 (merged) It is scoped to adding new attribute time_frame into aggregated metrics definition. Following changes has been included inside this MR

1. It adds time_frame attribute to aggregated metrics definition as follow up to discussions from !52784 (comment 498373989) Main motivation is two fold, one it is wasteful to try calculate aggregate if component metrics has not been collected for given time frame. And two, current implementation, allows to return -1 fallback value when component metric is missing only for production environment, while raising error for development and test envs, such approach, helps to inform developers while crafting MR that additional instrumentation is required for given time frame
2. It updates aggregated metrics documentation with time frame attribute description
3. It update existing aggregated metrics definitions with time_frame attribute, to match pre existing state

Does this MR meet the acceptance criteria?

Conformity

• [-] Changelog entry
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides