Refactor local_weighted_learning.py to use np.array
          #8069
        
          
      
                
     Merged
            
            
          
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Describe your change:
Fixes #7307 by refactoring machine_learning/local_weighted_learning/local_weighted_learning.py to use
np.arrayrather thannp.matrix. Thisshould silencesilences the pytest warnings aboutnp.matrixbeing due to be depreciated.Checklist:
Fixes: #{$ISSUE_NO}.