fix(loadgenerator): use add_hooks openfeature method (#1565)

* fix(loadgenerator): use add_hooks openfeature method

* chore: add openfeature fix to changelog

---------

Co-authored-by: Juliano Costa <julianocosta89@outlook.com>

Author: rogercoll

CHANGELOG.md

@@ -33,6 +33,8 @@ the release.
   ([#1553](https://github.com/open-telemetry/opentelemetry-demo/pull/1553))
 * [recommendationservice] Configure feature flag evaluation tracing
   ([#1553](https://github.com/open-telemetry/opentelemetry-demo/pull/1553))
+* [loadgenerator] Fix feature flag hooks setter method
+  ([#1556](https://github.com/open-telemetry/opentelemetry-demo/pull/1556))
 
 ## 1.9.0
 

src/loadgenerator/locustfile.py

@@ -70,7 +70,7 @@
 
 # Initialize Flagd provider
 api.set_provider(FlagdProvider(host=os.environ.get('FLAGD_HOST', 'flagd'), port=os.environ.get('FLAGD_PORT', 8013)))
-api.set_hooks([TracingHook()])
+api.add_hooks([TracingHook()])
 
 def get_flagd_value(FlagName):
     # Initialize OpenFeature