CI: update test cases to use different environment variables

change test environments
optimize asio udp server test
fix icmp echo test case
use ethernet_router env to run iperf test cases

examples/protocols/http_server/advanced_tests/pytest_http_server_advanced.py

@@ -35,7 +35,7 @@ from pytest_embedded import Dut
 @pytest.mark.esp32c3
 @pytest.mark.esp32s2
 @pytest.mark.esp32s3
-@pytest.mark.wifi
+@pytest.mark.wifi_router
 def test_examples_protocol_http_server_advanced(dut: Dut) -> None:
 
     # Get binary file