Upgrade OTLP proto to v1.7. (open-telemetry#4645)

* Upgrade to otel proto v1.7

* Add changelog

* Add event_name field to LogRecord and the LogRecord -> proto LogRecord conversion

* fix lint issue

* Revert changes adding event name to the log

* Revert pylint

Author: DylanRussell

CHANGELOG.md

@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+- Update OTLP proto to v1.7 [#4645](https://github.com/open-telemetry/opentelemetry-python/pull/4645).
 - Update OTLP gRPC/HTTP exporters: the export timeout is now inclusive of all retries and backoffs.
   A +/-20% jitter was added to all backoffs. A pointless 32 second sleep that occurred after all retries
   had completed/failed was removed.

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 v1.2.0 release_ of opentelemetry-proto.
+package was generated using the v1.7.0 release_ of opentelemetry-proto.
 
-.. _release: https://github.com/open-telemetry/opentelemetry-proto/releases/tag/v1.2.0
+.. _release: https://github.com/open-telemetry/opentelemetry-proto/releases/tag/v1.7.0
 
 Installation
 ------------