fix for json dupms

scripts/hpc/count_active_jobs_in_hpc.py

@@ -3,5 +3,5 @@ from igf_airflow.hpc_queue import get_pbspro_job_count
 
 if __name__=='__main__':
   hpc_jobs = get_pbspro_job_count(job_name_prefix='')
-  hpc_jobs = json.dump(hpc_jobs)
+  hpc_jobs = json.dumps(hpc_jobs)
   print(hpc_jobs)