ignore rpi test from CI

since the cross compiler is not installed on the CI machine

test/Makefile

 DISABLED_TESTS=common/ shared-components/ logs/ __pycache__
-export EXPECTED_FAILURES=test-stm32 air-iop1 stm32-serial-pohiada2 test-air-portnames stm32-f407-serial-pohi test-air-multiports test-air-interpartcomm  stm32-f407-serial  test-air-2cyclics stm32-f407-encodeReal TrafficLight_stm32f407_NonDistrib TrafficLight_stm32f407 msp430_cyclic_calls_protected msp430_cyclic_calls_sporadic msp430_cyclic_calls_unprotected msp430_protected_calls_protected msp430_protected_calls_sporadic msp430_protected_calls_unprotected msp430_sporadic_calls_protected msp430_sporadic_calls_sporadic msp430_sporadic_calls_unprotected msp430_unprotected_calls_protected msp430_unprotected_calls_sporadic msp430_unprotected_calls_unprotected msp430_ada msp430_cpp  msp430_driver_e_usci_serial msp430_sdl_ada msp430_sdl_c Demo_CoRA_MBAD_4ZYNQ_GNC Demo_CoRA_MBAD_4ZYNQ_PrimeNumbers Demo_CoRA_MBAD_4ZYNQ_SWonly
+export EXPECTED_FAILURES=test-stm32 air-iop1 stm32-serial-pohiada2 test-air-portnames stm32-f407-serial-pohi test-air-multiports test-air-interpartcomm  stm32-f407-serial  test-air-2cyclics stm32-f407-encodeReal TrafficLight_stm32f407_NonDistrib TrafficLight_stm32f407 msp430_cyclic_calls_protected msp430_cyclic_calls_sporadic msp430_cyclic_calls_unprotected msp430_protected_calls_protected msp430_protected_calls_sporadic msp430_protected_calls_unprotected msp430_sporadic_calls_protected msp430_sporadic_calls_sporadic msp430_sporadic_calls_unprotected msp430_unprotected_calls_protected msp430_unprotected_calls_sporadic msp430_unprotected_calls_unprotected msp430_ada msp430_cpp  msp430_driver_e_usci_serial msp430_sdl_ada msp430_sdl_c Demo_CoRA_MBAD_4ZYNQ_GNC Demo_CoRA_MBAD_4ZYNQ_PrimeNumbers Demo_CoRA_MBAD_4ZYNQ_SWonly rpi_hello_world
 TEST_CASES=$(sort $(filter-out $(DISABLED_TESTS), $(dir $(wildcard */))))
 export MAKEFLAGS="-j $(grep -c ^processor /proc/cpuinfo)"
 MAKEFILE_PATH   := $(abspath $(lastword $(MAKEFILE_LIST)))