Fix time intervals to match with proto and time window definition in sum/histogram (#2241)
Fix time intervals to match with proto and time window definition in sum/histogram (#2241)

* Fix time intervals to match with proto and time window definition in sum/histogram

Signed-off-by: Bogdan Drutu <3f8e17047c2434e5c82a61403e56b9ef3e226d99@gmail.com>

* Update specification/metrics/datamodel.md

Co-authored-by: Georg Pirklbauer <20b1e3eaedf1c4f5fabb856a36fea53c41c606b2@dynatrace.com>

* Update specification/metrics/datamodel.md

Co-authored-by: Georg Pirklbauer <20b1e3eaedf1c4f5fabb856a36fea53c41c606b2@dynatrace.com>

Co-authored-by: Georg Pirklbauer <20b1e3eaedf1c4f5fabb856a36fea53c41c606b2@dynatrace.com>
open-telemetry/opentelemetry-specification,open-telemetry/opentelemetry-specification