Failing build on zen4

[laraPPr]

For zen4 builds we are using a hook from the EESSI/software-layer:

def pre_configure_hook_LAMMPS_zen4(self, *args, **kwargs):
    """
    pre-configure hook for LAMMPS:
    - set kokkos_arch on x86_64/amd/zen4
    """

    cpu_target = get_eessi_envvar('EESSI_SOFTWARE_SUBDIR')
    if self.name == 'LAMMPS':
        if self.version in ('2Aug2023_update2', '2Aug2023_update4', '29Aug2024'):
            if get_cpu_architecture() == X86_64:
                if cpu_target == CPU_TARGET_ZEN4:
                    # There is no support for ZEN4 in LAMMPS yet so falling back to ZEN3
                    self.cfg['kokkos_arch'] = 'ZEN3'
    else:
        raise EasyBuildError("LAMMPS-specific hook triggered for non-LAMMPS easyconfig?!")

This does a check of self.version. when using software-commit this value is set to the commit that was passed through the command or easystack. Because of this the necessary changes are not done for kokkos_arch

A possible way to resolve is to find out what the version is similarly as we do in the EasyBlock:

path = self.builddir
if os.path.exists(path) and os.listdir(path):
            txt = read_file(os.path.join(path, 'src', 'version.h'))
            result = re.search(r'(?<=LAMMPS_VERSION ")\d+ \S+ \d+', txt)