Fix OTel examples to use new runner

examples/open-telemetry/langfuse/bot.py

@@ -6,6 +6,7 @@
 
 import argparse
 import os
+import sys
 
 from dotenv import load_dotenv
 from loguru import logger
@@ -159,6 +160,7 @@ async def run_example(transport: BaseTransport, _: argparse.Namespace, handle_si
 
 
 if __name__ == "__main__":
-    from ..run import main
+    sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))
+    from run import main
 
     main(run_example, transport_params=transport_params)