fix strict eq effect test (#1170)

Author: rmorshea

Diff for: src/py/reactpy/tests/test_core/test_hooks.py

@@ -1204,7 +1204,7 @@ def SomeComponent():
 @pytest.mark.parametrize("get_value", STRICT_EQUALITY_VALUE_CONSTRUCTORS)
 async def test_use_effect_compares_with_strict_equality(get_value):
     effect_count = reactpy.Ref(0)
-    value = reactpy.Ref("string")
+    value = reactpy.Ref(get_value())
     hook = HookCatcher()
 
     @reactpy.component
@@ -1217,7 +1217,7 @@ def incr_effect_count():
     async with reactpy.Layout(SomeComponent()) as layout:
         await layout.render()
         assert effect_count.current == 1
-        value.current = "string"  # new string instance but same value
+        value.current = get_value()
         hook.latest.schedule_render()
         await layout.render()
         # effect does not trigger