♻️(backend) use sentry tags instead of extra scope

To ease filtering issues on sentry, we want to use tags instead of extra
scope. Tags are indexed and searchable, it's not the case with extra
scope. Moreover using set_extra to add additional data is deprecated.

Commit #ebf6d46 on docs.

src/backend/meet/settings.py

@@ -638,10 +638,7 @@ class Base(Configuration):
                 release=get_release(),
                 integrations=[DjangoIntegration()],
             )
-
-            # Add the application name to the Sentry scope
-            scope = sentry_sdk.get_global_scope()
-            scope.set_tag("application", "backend")
+            sentry_sdk.set_tag("application", "backend")
 
             # Ignore the logs added by the DockerflowMiddleware
             ignore_logger("request.summary")