test: replace manually-written snapshot YAML with auto-generated one

Co-authored-by: SteveSandersonMS <1101362+SteveSandersonMS@users.noreply.github.com>

Author: Copilot

test/snapshots/session/sendandwait_throws_operationcanceledexception_when_token_cancelled.yaml

@@ -7,7 +7,7 @@ conversations:
       - role: user
         content: run the shell command 'sleep 10' (note this works on both bash and PowerShell)
       - role: assistant
-        content: I'll run the sleep command for 10 seconds.
+        content: I'll run the sleep command for you.
       - role: assistant
         tool_calls:
           - id: toolcall_0
@@ -21,4 +21,4 @@ conversations:
             type: function
             function:
               name: ${shell}
-              arguments: '{"command":"sleep 10","description":"Run sleep 10 command","mode":"sync","initial_wait":15}'
+              arguments: '{"command":"sleep 10","description":"Execute sleep 10 command","initial_wait":15,"mode":"sync"}'