Rivet_i: Additional fix for HighFive update in LCG_107a_ATLAS_3

This is a follow-up to MR !78758 (merged). This fix is needed to build Rivet_i in AthGeneration with LCG_107a_ATLAS_3.

Tagging @akraszna - it's related to all the following tickets: SPI-2757, SPI-2753, ATLINFR-5716.