chore: add ast-grep rule to convert Optional[T] to T | None (#25560)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

api/core/ops/arize_phoenix_trace/arize_phoenix_trace.py

@@ -3,7 +3,7 @@ import json
 import logging
 import os
 from datetime import datetime, timedelta
-from typing import Any, Optional, Union, cast
+from typing import Any, Union, cast
 from urllib.parse import urlparse
 
 from openinference.semconv.trace import OpenInferenceSpanKindValues, SpanAttributes
@@ -92,14 +92,14 @@ def setup_tracer(arize_phoenix_config: ArizeConfig | PhoenixConfig) -> tuple[tra
         raise
 
 
-def datetime_to_nanos(dt: Optional[datetime]) -> int:
+def datetime_to_nanos(dt: datetime | None) -> int:
     """Convert datetime to nanoseconds since epoch. If None, use current time."""
     if dt is None:
         dt = datetime.now()
     return int(dt.timestamp() * 1_000_000_000)
 
 
-def string_to_trace_id128(string: Optional[str]) -> int:
+def string_to_trace_id128(string: str | None) -> int:
     """
     Convert any input string into a stable 128-bit integer trace ID.
 
@@ -284,7 +284,7 @@ class ArizePhoenixDataTrace(BaseTraceInstance):
             return
 
         file_list = cast(list[str], trace_info.file_list) or []
-        message_file_data: Optional[MessageFile] = trace_info.message_file_data
+        message_file_data: MessageFile | None = trace_info.message_file_data
 
         if message_file_data is not None:
             file_url = f"{self.file_base_url}/{message_file_data.url}" if message_file_data else ""
@@ -308,7 +308,7 @@ class ArizePhoenixDataTrace(BaseTraceInstance):
 
         # Add end user data if available
         if trace_info.message_data.from_end_user_id:
-            end_user_data: Optional[EndUser] = (
+            end_user_data: EndUser | None = (
                 db.session.query(EndUser).where(EndUser.id == trace_info.message_data.from_end_user_id).first()
             )
             if end_user_data is not None: