text: Title: Pgbouncer exporter doesn't support metrics exposed by updated pgbouncer.
  Body: ### Apache Airflow version
  
  2.10.5
  
  ### If "Other Airflow 2 version" selected, which one?
  
  _No response_
  
  ### What happened?
  
  PGBouncer has been updated and now exposes more metrics than before - the exporter no longer supports the full list of metrics and the following error can be seen in the logs of the exporter:
  
  > could not get store result: could not get stats: unexpected column: total_server_assignment_count
  
  The support has been added in upstream [pg_exporter](https://github.com/Vonng/pg_exporter/blob/main/pg_exporter.yml#L5441C12-L5441C12), supporting pgbouncer version 1.24 and up.
  
  The pgbouncer base image was updated to 1.24 in the [airflow-pgbouncer-2025.01.10-1.24.0](https://hub.docker.com/layers/apache/airflow/airflow-pgbouncer-2025.01.10-1.24.0/images/sha256-e8fd120604e8113082e9ad070e638b715cf512c279299782e76cc5ad431a25ad) docker image, however the exporter has not been updated to support it.
  
  The [defaults for the helm chart](https://github.com/apache/airflow/blob/main/chart/values.yaml#L116-L122) are currently;
  ```
    pgbouncer:
      tag: airflow-pgbouncer-2025.01.10-1.24.0
    pgbouncerExporter:
      tag: airflow-pgbouncer-exporter-2024.06.18-0.17.0
  ```
  
  Which are not compatible.
  
  ### What you think should happen instead?
  
  The exporter should be compatible with the version of pgbouncer deployed.
  
  ### How to reproduce
  
  Deploy the latest helm chart enabling pgbouncer, the logs for the `metrics-exporter` container in the pgbouncer pod will indicate the error
  > could not get store result: could not get stats: unexpected column: total_server_assignment_count
  
  ### Operating System
  
  Ubuntu 22.04
  
  ### Versions of Apache Airflow Providers
  
  _No response_
  
  ### Deployment
  
  Official Apache Airflow Helm Chart
  
  ### Deployment details
  
  pgbouncer enabled
  
  ### 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 project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)
  