fix docs: update Python network update examples

Author: matthewlouisbrockman

docs/sandbox/internet-access.mdx

@@ -259,21 +259,21 @@ from e2b import Sandbox, ALL_TRAFFIC
 sandbox = Sandbox.create()
 
 # Tighten egress on the running sandbox: block 8.8.8.8
-sandbox.update_network(deny_out=["8.8.8.8"])
+sandbox.update_network({"deny_out": ["8.8.8.8"]})
 
 # Replace with an allow-list only
-sandbox.update_network(
-    deny_out=[ALL_TRAFFIC],
-    allow_out=["api.example.com"],
-)
+sandbox.update_network({
+    "deny_out": [ALL_TRAFFIC],
+    "allow_out": ["api.example.com"],
+})
 
 # Toggle internet access without recreating the sandbox
-sandbox.update_network(allow_internet_access=False)
+sandbox.update_network({"allow_internet_access": False})
 ```
 </CodeGroup>
 
 <Note>
-`updateNetwork` / `update_network` **replaces** the current egress configuration — it does not merge with the existing rules. Calling it with no arguments (or an empty object) clears all `allowOut` / `denyOut` / per-host rules set at create time.
+`updateNetwork` / `update_network` **replaces** the current egress configuration — it does not merge with the existing rules. Calling it with an empty object (`updateNetwork({})` / `update_network({})`) clears all `allowOut` / `denyOut` / per-host rules set at create time.
 </Note>
 
 The create-only options `allowPublicTraffic` and `maskRequestHost` cannot be changed after the sandbox is created.