Bump required boost version to 1.70
This needs to wait until LCG has updated to boost 1.70 (foreseen for LCG96), and ATLAS has updated to that LCG version.
See https://sft.its.cern.ch/jira/browse/SPI-1293 for infos
This needs to wait until LCG has updated to boost 1.70 (foreseen for LCG96), and ATLAS has updated to that LCG version.
See https://sft.its.cern.ch/jira/browse/SPI-1293 for infos