Add AWS App Runner as a cloud platform (open-telemetry#2004)

Author: willarmiros

CHANGELOG.md

@@ -26,6 +26,8 @@ release.
 
 - BREAKING: Remove db.cassandra.keyspace and db.hbase.namespace, and clarify db.name
   ([#1973](https://github.com/open-telemetry/opentelemetry-specification/pull/1973))
+- Add AWS App Runner as a cloud platform
+  ([#2004](https://github.com/open-telemetry/opentelemetry-specification/pull/2004))
 - Add Tencent Cloud as a cloud provider.
   ([#2006](https://github.com/open-telemetry/opentelemetry-specification/pull/2006))
 - Don't set Span.Status for 4xx http status codes for SERVER spans.

semantic_conventions/resource/cloud.yaml

@@ -76,6 +76,9 @@ groups:
             - id: aws_elastic_beanstalk
               value: 'aws_elastic_beanstalk'
               brief: AWS Elastic Beanstalk
+            - id: aws_app_runner
+              value: 'aws_app_runner'
+              brief: AWS App Runner
             - id: azure_vm
               value: 'azure_vm'
               brief: Azure Virtual Machines

specification/resource/semantic_conventions/cloud.md

@@ -42,6 +42,7 @@
 | `aws_eks` | AWS Elastic Kubernetes Service |
 | `aws_lambda` | AWS Lambda |
 | `aws_elastic_beanstalk` | AWS Elastic Beanstalk |
+| `aws_app_runner` | AWS App Runner |
 | `azure_vm` | Azure Virtual Machines |
 | `azure_container_instances` | Azure Container Instances |
 | `azure_aks` | Azure Kubernetes Service |