9ba57df CI Tests: fix /tests/Regression/bz549813-dl-close-race-with-C-destructor

1 file Authored by mcoufal 3 months ago, Committed by codonell 3 months ago,
    CI Tests: fix /tests/Regression/bz549813-dl-close-race-with-C-destructor
    
    * include 'unistd.h'