Set arb003 flaky

Author: T4rk1n

tests/integration/callbacks/test_arbitrary_callbacks.py

@@ -11,6 +11,8 @@
     clientside_callback,
 )
 
+from flaky import flaky
+
 
 def test_arb001_global_set_props(dash_duo):
     app = Dash()
@@ -89,6 +91,7 @@ def no_output3(_):
         assert counter.value == 1
 
 
+@flaky(max_runs=3)
 def test_arb003_arbitrary_pages(dash_duo):
     app = Dash(use_pages=True, pages_folder="")