Remove report_exposure parameter from OpenFeature provider's get_variant call

Let the underlying flags provider use its default behavior rather than
explicitly passing report_exposure=True.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: msiebert

openfeature-provider/src/mixpanel_openfeature/provider.py

@@ -108,7 +108,7 @@ def _resolve(
         user_context = self._build_user_context(evaluation_context)
         try:
             result = self._flags_provider.get_variant(
-                flag_key, fallback, user_context, report_exposure=True
+                flag_key, fallback, user_context
             )
         except Exception:
             return FlagResolutionDetails(

openfeature-provider/tests/test_provider.py

@@ -23,7 +23,7 @@ def provider(mock_flags):
 def setup_flag(mock_flags, flag_key, value, variant_key="variant-key"):
     """Configure mock to return a SelectedVariant with the given value."""
     mock_flags.get_variant.side_effect = (
-        lambda key, fallback, ctx, report_exposure=True: (
+        lambda key, fallback, ctx: (
             SelectedVariant(variant_key=variant_key, variant_value=value)
             if key == flag_key
             else fallback
@@ -34,7 +34,7 @@ def setup_flag(mock_flags, flag_key, value, variant_key="variant-key"):
 def setup_flag_not_found(mock_flags, flag_key):
     """Configure mock to return the fallback (identity check triggers FLAG_NOT_FOUND)."""
     mock_flags.get_variant.side_effect = (
-        lambda key, fallback, ctx, report_exposure=True: fallback
+        lambda key, fallback, ctx: fallback
     )
 
 
@@ -300,7 +300,7 @@ def test_provider_not_ready_object(mock_flags):
 def test_remote_provider_always_ready():
     remote_flags = MagicMock(spec=[])  # empty spec = no attributes
     remote_flags.get_variant = MagicMock(
-        side_effect=lambda key, fallback, ctx, report_exposure=True: SelectedVariant(
+        side_effect=lambda key, fallback, ctx: SelectedVariant(
             variant_key="v1", variant_value=True
         )
     )