getByLabel to getByToken migration in DQM/PhysicsObjectsMonitoring package

Signed-off-by: Antanas Norkus <antanas.norkus@cern.ch>
getByLabel to getByToken migration in DQM/RCTMonitor package

Signed-off-by: Antanas Norkus <antanas.norkus@cern.ch>
getByLabel to getByToken migration in DQM/SiPixelMonitorClient package

Signed-off-by: Antanas Norkus <antanas.norkus@cern.ch>
getByLabel to getByToken migration in DQM/SiPixelMonitorCluster package

Signed-off-by: Antanas Norkus <antanas.norkus@cern.ch>
getByLabel to getByToken migration in DQM/SiPixelMonitorDigi package

Signed-off-by: Antanas Norkus <antanas.norkus@cern.ch>