chore: bump ruff to 0.11.0 and fix linting violations (#15953)

api/core/workflow/entities/variable_pool.py

@@ -15,7 +15,6 @@ from ..enums import SystemVariableKey
 
 VariableValue = Union[str, int, float, dict, list, File]
 
-
 VARIABLE_PATTERN = re.compile(r"\{\{#([a-zA-Z0-9_]{1,50}(?:\.[a-zA-Z_][a-zA-Z0-9_]{0,29}){1,10})#\}\}")
 
 
@@ -131,7 +130,7 @@ class VariablePool(BaseModel):
             if attr not in {item.value for item in FileAttribute}:
                 return None
             value = self.get(selector)
-            if not isinstance(value, (FileSegment, NoneSegment)):
+            if not isinstance(value, FileSegment | NoneSegment):
                 return None
             if isinstance(value, FileSegment):
                 attr = FileAttribute(attr)

api/core/workflow/nodes/loop/loop_node.py

@@ -1,6 +1,6 @@
 import logging
 from collections.abc import Generator, Mapping, Sequence
-from datetime import datetime, timezone
+from datetime import UTC, datetime
 from typing import Any, cast
 
 from configs import dify_config
@@ -80,7 +80,7 @@ class LoopNode(BaseNode[LoopNodeData]):
             thread_pool_id=self.thread_pool_id,
         )
 
-        start_at = datetime.now(timezone.utc).replace(tzinfo=None)
+        start_at = datetime.now(UTC).replace(tzinfo=None)
         condition_processor = ConditionProcessor()
 
         # Start Loop event