Fix cli arguments

Author: Hartorn

giskard/commands/cli_worker.py

@@ -109,7 +109,7 @@ def start_command(url: AnyHttpUrl, is_server, api_key, is_daemon, hf_token, nb_w
     )
     api_key = initialize_api_key(api_key, is_server)
     hf_token = initialize_hf_token(hf_token, is_server)
-    _start_command(is_server, url, api_key, is_daemon, hf_token, nb_workers)
+    _start_command(is_server, url, api_key, is_daemon, hf_token, int(nb_workers) if nb_workers is not None else None)
 
 
 def initialize_api_key(api_key, is_server):

giskard/utils/__init__.py

@@ -31,8 +31,8 @@ def __init__(self):
     def start(self, max_workers: int = None):
         if self.pool is not None:
             return
-        LOGGER.info("Starting worker pool...")
         self.max_workers = max(max_workers, settings.min_workers) if max_workers is not None else os.cpu_count()
+        LOGGER.info("Starting worker pool with %s workers...", self.max_workers)
         self.pool = ProcessPoolExecutor(max_workers=self.max_workers)
         LOGGER.info("Pool is started")