Update opentelemetry-proto to v0.15.0 (#2566)

Author: srikanthccv

CHANGELOG.md

@@ -22,6 +22,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#2540](https://github.com/open-telemetry/opentelemetry-python/pull/2540))
 - Drop the usage of name field from log model in OTLP
   ([#2565](https://github.com/open-telemetry/opentelemetry-python/pull/2565))
+- Update opentelemetry-proto to v0.15.0
+  ([#2566](https://github.com/open-telemetry/opentelemetry-python/pull/2566))
 - Remove `enable_default_view` option from sdk MeterProvider
   ([#2547](https://github.com/open-telemetry/opentelemetry-python/pull/2547))
 

opentelemetry-proto/README.rst

@@ -7,9 +7,9 @@ OpenTelemetry Python Proto
    :target: https://pypi.org/project/opentelemetry-proto/
 
 This library contains the generated code for OpenTelemetry protobuf data model. The code in the current
-package was generated using the v0.9.0 release_ of opentelemetry-proto.
+package was generated using the v0.15.0 release_ of opentelemetry-proto.
 
-.. _release: https://github.com/open-telemetry/opentelemetry-proto/releases/tag/v0.9.0
+.. _release: https://github.com/open-telemetry/opentelemetry-proto/releases/tag/v0.15.0
 
 Installation
 ------------