chore: Update host binding in service-adapters main.py

### Summary of Changes
- Changed the host binding in `main.py` from `0.0.0.0` to `127.0.0.1` to restrict access to localhost, enhancing security by preventing external access.

### Expected Results
- Improved security posture of the service-adapters module by limiting the network exposure of the application.

services/service-adapters/main.py

@@ -35,4 +35,4 @@ app.include_router(events.router)
 if __name__ == "__main__":
     import uvicorn
 
-    uvicorn.run(app, host="0.0.0.0", port=8000)
+    uvicorn.run(app, host="127.0.0.1", port=8000)