Merge branch 'ci/fix_mqtt5_broker_not_available' into 'master'

ci: Fix mqtt broker is not available

Closes IDFCI-1476

See merge request espressif/esp-idf!20434

examples/protocols/mqtt5/sdkconfig.ci

@@ -7,3 +7,4 @@ CONFIG_EXAMPLE_ETH_MDIO_GPIO=18
 CONFIG_EXAMPLE_ETH_PHY_RST_GPIO=5
 CONFIG_EXAMPLE_ETH_PHY_ADDR=1
 CONFIG_MQTT_PROTOCOL_5=y
+CONFIG_BROKER_URL="mqtt://${EXAMPLE_MQTTV5_BROKER_TCP}"

tools/unit-test-app/configs/mqtt

@@ -1,3 +1,3 @@
 TEST_COMPONENTS=mqtt
 CONFIG_MQTT_PROTOCOL_5=y
-CONFIG_MQTT5_TEST_BROKER_URI="mqtt://mqtt.eclipseprojects.io"
+CONFIG_MQTT5_TEST_BROKER_URI="mqtt://${EXAMPLE_MQTTV5_BROKER_TCP}"