ci: bump actions/setup-python from 4 to 5 #123

Job	Run time
build (examples/a_wild_card/)	1m 29s
build (examples/b_address_change/)	1m 28s
build (examples/c_check_all_addresses/)	1m 33s
build (examples/d_simple_logger/)	1m 27s
build (examples/e_continuous_measurement/)	1m 34s
build (examples/f_basic_data_request/)	1m 25s
build (examples/g_terminal_window/)	1m 29s
build (examples/h_SDI-12_slave_implementation/)	1m 15s
build (examples/i_SDI-12_interface/)	1m 17s
build (examples/j_external_pcint_library/)	26s
build (examples/k_concurrent_logger/)	1m 29s
	14m 52s

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