Statsd aggregation issue on some metrics with multiple schedulers running

### Apache Airflow version Other Airflow 2 version ### What happened When I am running multiple schedulers (>1) the statsd exporter does not correctly sum the running tasks from the different scheduler but it does just take one metric from one scheduler and display it as the value. the metric name : `airflow_executor_running_tasks` ### What you think should happen instead airflow statsd exporter should sum up all running tasks from all the existing and running schedulers to calculate `airflow_executor_running_tasks` ### How to reproduce Run an airflow cluster with 2 schedulers and with statsd enabled. Create enough tasks to balance them between the 2 schedulers. Using the UI you can check that between the displayed value and the `airflow_executor_running_tasks` metric exposed by statsd you will not have the same number? ### Operating System Debian GNU/Linux 11 (bullseye) ### Versions of Apache Airflow Providers apache-airflow-providers-amazon==3.4.0 apache-airflow-providers-celery==2.1.4 apache-airflow-providers-cncf-kubernetes==4.0.2 apache-airflow-providers-docker==2.7.0 apache-airflow-providers-elasticsearch==3.0.3 apache-airflow-providers-ftp==2.1.2 apache-airflow-providers-google==7.0.0 apache-airflow-providers-grpc==2.0.4 apache-airflow-providers-hashicorp==2.2.0 apache-airflow-providers-http==2.1.2 apache-airflow-providers-imap==2.2.3 apache-airflow-providers-microsoft-azure==3.9.0 apache-airflow-providers-mysql==2.2.3 apache-airflow-providers-odbc==2.0.4 apache-airflow-providers-postgres==4.1.0 apache-airflow-providers-redis==2.0.4 apache-airflow-providers-sendgrid==2.0.4 apache-airflow-providers-sftp==2.6.0 apache-airflow-providers-slack==4.2.3 apache-airflow-providers-sqlite==2.1.3 apache-airflow-providers-ssh==2.4.4 ### Deployment Official Apache Airflow Helm Chart ### Deployment details _No response_ ### Anything else _No response_ ### Are you willing to submit PR? - [ ] Yes I am willing to submit a PR! ### Code of Conduct - [X] I agree to follow this pr…