Linux: Fix up too-net typing syntax

Author: ikelos

volatility3/framework/symbols/linux/extensions/__init__.py

@@ -2404,7 +2404,7 @@ def get_inode_type(self) -> Union[str, None]:
 
     def _time_member_to_datetime(
         self, member
-    ) -> datetime.datetime | interfaces.renderers.BaseAbsentValue:
+    ) -> Union[datetime.datetime, interfaces.renderers.BaseAbsentValue]:
         if self.has_member(f"{member}_sec") and self.has_member(f"{member}_nsec"):
             # kernels >= 6.11 it's i_*_sec -> time64_t and i_*_nsec -> u32
             # Ref Linux commit 3aa63a569c64e708df547a8913c84e64a06e7853

volatility3/framework/symbols/linux/extensions/net.py

@@ -1,5 +1,5 @@
 import logging
-from typing import Dict, List, Optional
+from typing import Dict, List, Optional, Union
 
 from volatility3.framework import objects, exceptions, renderers, interfaces, constants
 from volatility3.framework.objects import utility
@@ -214,7 +214,7 @@ def get_net_namespace_id(self) -> int:
 
         return net_ns_id
 
-    def get_operational_state(self) -> str | interfaces.renderers.BaseAbsentValue:
+    def get_operational_state(self) -> Union[str, interfaces.renderers.BaseAbsentValue]:
         """Return the netwok device oprational state (RFC 2863) string
 
         Returns: