CI: Add ip neighbour to test
    
    sample run
    ```
    
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    ::   Test
    ::   Test
    ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
    
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    :: [ 17:23:10 ] :: [   LOG    ] :: ip neighbor tests
    :: [ 17:23:10 ] :: [   LOG    ] :: ip neighbor tests
    :: [ 17:23:10 ] :: [  BEGIN   ] :: Running '/usr/bin/python3 /usr/bin/ip-neighbor-tests.py'
    test_add_neighbor (__main__.IPNeighborTests) ... 192.168.100.1 lladdr 00:c0:7b:7d:00:c8 PERMANENT
    ok
    test_replace_neighbor (__main__.IPNeighborTests) ... 192.168.99.254 lladdr 00:80:c8:27:69:2d PERMANENT
    192.168.99.254 lladdr 00:80:c8:27:69:2d PERMANENT
    ok
    ----------------------------------------------------------------------
    Ran 2 tests in 0.053s
    
    OK
    :: [ 17:23:10 ] :: [   PASS   ] :: Command '/usr/bin/python3 /usr/bin/ip-neighbor-tests.py' (Expected 0, got 0)
    :: [ 17:23:10 ] :: [   PASS   ] :: Command '/usr/bin/python3 /usr/bin/ip-neighbor-tests.py' (Expected 0, got 0)
    ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
    ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
    ::   Duration: 0s
    ::   Duration: 0s
    ::   Assertions: 1 good, 0 bad
    ::   Assertions: 1 good, 0 bad
    ::   RESULT: PASS
    ::   RESULT: PASS
    
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    ::   Cleanup
    ::   Cleanup
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    ```