Correct formatting of CHANGELOG (open-telemetry#3029)

Signed-off-by: Adrian Cole <[email protected]>
Co-authored-by: Riccardo Magliocchetti <[email protected]>

Author: codefromthecrypt

CHANGELOG.md

@@ -17,9 +17,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   ([#2976](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/2976))
 - Add `opentelemetry-instrumentation-openai-v2` to `opentelemetry-bootstrap`
   ([#2996](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/2996))
-  - `opentelemetry-instrumentation-sqlalchemy` Add sqlcomment to `db.statement` attribute
+- `opentelemetry-instrumentation-sqlalchemy` Add sqlcomment to `db.statement` attribute
   ([#2937](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/2937))
-  - `opentelemetry-instrumentation-dbapi` Add sqlcomment to `db.statement` attribute
+- `opentelemetry-instrumentation-dbapi` Add sqlcomment to `db.statement` attribute
   ([#2935](https://github.com/open-telemetry/opentelemetry-python-contrib/pull/2935))
 
 ### Fixed