Update git submodules

* Update tools/tradefederation/core from branch 'master'
  to 1dbf7603aaf5105b5a130851455da1284c2cdec7
  - Merge "Make CollectingtestListener non-interface method thread safe"
  - Make CollectingtestListener non-interface method thread safe
    
    Requesting the current results on CollectingTestListener
    should be safe. It wasn't the case with the newly introduced
    merged results.
    
    Test: unit tests
    Bug: 119558673
    Change-Id: I395c8839760e7f131ba76082921af9dc520cb3f7
    
1 file changed