testing/foma: upgrade to 0.10.0_git20240712
https://github.com/mhulden/foma/compare/fe40ace...a2d32b3
Also resolves rebuild error in 0.10.0_git20221230 with gcc 14.
https://github.com/mhulden/foma/compare/fe40ace...a2d32b3
Also resolves rebuild error in 0.10.0_git20221230 with gcc 14.