fix(examples/hello_esp32): connect to the CI server only after downloading firmware files

Author: urish

examples/hello_esp32/main.py

@@ -25,12 +25,6 @@ async def main() -> None:
             f"Set WOKWI_CLI_TOKEN in your environment. You can get it from {GET_TOKEN_URL}."
         )
 
-    client = WokwiClient(token)
-    print(f"Wokwi client library version: {client.version}")
-
-    hello = await client.connect()
-    print("Connected to Wokwi Simulator, server version:", hello["version"])
-
     for filename, url in FIRMWARE_FILES.items():
         if (EXAMPLE_DIR / filename).exists():
             continue
@@ -40,6 +34,12 @@ async def main() -> None:
         with open(EXAMPLE_DIR / filename, "wb") as f:
             f.write(response.content)
 
+    client = WokwiClient(token)
+    print(f"Wokwi client library version: {client.version}")
+
+    hello = await client.connect()
+    print("Connected to Wokwi Simulator, server version:", hello["version"])
+
     # Upload the diagram and firmware files
     await client.upload_file("diagram.json", EXAMPLE_DIR / "diagram.json")
     await client.upload_file("hello_world.bin", EXAMPLE_DIR / "hello_world.bin")