Update git submodules

* Update oslo.service from branch 'master'
  - Merge "Align tests with monkey patch original current_thread _active"
  - Align tests with monkey patch original current_thread _active
    
    Recent changes [1] introduced an eventlet fix to monkey patch original
    current_thread _active.
    
    The goal was to monkey patch the original current_thread to use the
    up-to-date _active global variable. This solution is based on that
    documented at: eventlet/eventlet#592
    
    I think we need this patch on unit test too to ensure a consistent
    behavior, so these changes doing that.
    
    [1] https://review.opendev.org/#/c/725359/
    
    Change-Id: I7b6cca86e44261bf2f953be74e9738ac09507649