ignore AppleDouble format files on extension load

Author: chrishalcrow

src/spikeinterface/core/sortinganalyzer.py

@@ -2219,6 +2219,7 @@ def load_data(self):
                     ext_data_file.name == "params.json"
                     or ext_data_file.name == "info.json"
                     or ext_data_file.name == "run_info.json"
+                    or str(ext_data_file.name).startswith("._")  # ignore AppleDouble format files
                 ):
                     continue
                 ext_data_name = ext_data_file.stem