Opentelemetry-semantic-conventions

- Add semantic conventions for AWS SDK operations and DynamoDB ([1422](https://github.com/open-telemetry/opentelemetry-specification/pull/1422))
- Add details for filling semantic conventions for AWS Lambda ([1442](https://github.com/open-telemetry/opentelemetry-specification/pull/1442))
- Update semantic conventions to distinguish between int and double ([1550](https://github.com/open-telemetry/opentelemetry-specification/pull/1550))
- Add semantic convention for AWS ECS task revision ([1581](https://github.com/open-telemetry/opentelemetry-specification/pull/1581))

- Add `elasticsearch` to `db.system` semantic conventions ([1463](https://github.com/open-telemetry/opentelemetry-specification/pull/1463))
- Add `arch` to `host` semantic conventions ([1483](https://github.com/open-telemetry/opentelemetry-specification/pull/1483))
- Add `runtime` to `container` semantic conventions ([1482](https://github.com/open-telemetry/opentelemetry-specification/pull/1482))
- Rename `gcp_gke` to `gcp_kubernetes_engine` to have consistency with other
Google products under `cloud.infrastructure_service` ([1496](https://github.com/open-telemetry/opentelemetry-specification/pull/1496))
- `http.url` MUST NOT contain credentials ([1502](https://github.com/open-telemetry/opentelemetry-specification/pull/1502))
- Add `aws.eks.cluster.arn` to EKS specific semantic conventions ([1484](https://github.com/open-telemetry/opentelemetry-specification/pull/1484))
- Rename `zone` to `availability_zone` in `cloud` semantic conventions ([1495](https://github.com/open-telemetry/opentelemetry-specification/pull/1495))
- Rename `cloud.infrastructure_service` to `cloud.platform` ([1530](https://github.com/open-telemetry/opentelemetry-specification/pull/1530))
- Add section describing that libraries and the collector should autogenerate
the semantic convention keys. ([1515](https://github.com/open-telemetry/opentelemetry-specification/pull/1515))

N/A

First release of OpenTelemetry Specification. Semantic conventions were not explicitly tracked in changelog up to this point.