fix: add missing signal handler arguments in gpu health monitor

the signal handler was missing signum and frame parameters which caused
a TypeError when shutting down the pod

fixes #365

Signed-off-by: Gyan172004 <[email protected]>

Author: Gyan172004

health-monitors/gpu-health-monitor/gpu_health_monitor/cli.py

@@ -128,7 +128,7 @@ def cli(
 
     prom_server, t = start_http_server(port)
 
-    def process_exit_signal():
+    def process_exit_signal(signum, frame):
         exit.set()
         prom_server.shutdown()
         t.join()