Prepare release 1.5.0 (#611)

* Prepare release 1.5.0

CHANGELOG.md

@@ -6,8 +6,22 @@ The full list of changes can be found in the compare view for the respective rel
 
 ### Added
 
+### Changed
+
+### Removed
+
+## 1.5.0 - 2024-12-12
+
+### Added
+
+- all: Add note about `schema_url` format (including version). [#605](https://github.com/open-telemetry/opentelemetry-proto/pull/605)
 - logs: Add top-level `event_name` field to log records instead of `event.name` attribute. [#600](https://github.com/open-telemetry/opentelemetry-proto/pull/600)
 
+### Removed
+
+- profiles: Remove unused `Label` definition. [#602](https://github.com/open-telemetry/opentelemetry-proto/pull/602)
+- profiles: drop duplicate `attributes` field in message Profile. [#606](https://github.com/open-telemetry/opentelemetry-proto/pull/606)
+
 ## 1.4.0 - 2024-11-20
 
 ### Added