Fix file path in test_register_face.py

testing/test_register_face.py

@@ -8,7 +8,7 @@
 def test_register_face():
     # Open a test image file in binary mode
     IMAGEDIR = "test-faces/"
-    with open(".\\test-faces\\07c64ef1-b32e-4396-97ea-0894249d58ee.jpg", "rb") as image_file:
+    with open("./test-faces/07c64ef1-b32e-4396-97ea-0894249d58ee.jpg", "rb") as image_file:
         # Create a tuple with the file's name and its content
         file_tuple = ("test_image.jpg", image_file.read())
         # Create a dictionary with the file's data