When getting data from buffer, copy values instead of taking reference

Author: Baharis

src/instamatic/camera/camera_client.py

@@ -196,7 +196,7 @@ def get_data_from_shared_memory(self, name: str, shape: tuple, dtype: str, **kwa
             print(f'Retrieve data from buffer `{name}`')
 
         buffer = self.buffers[name]
-        data = buffer[:]
+        data = buffer[:].copy()
 
         return data