`freeze.py`: needs `--kind=explicit`
See
@@ -62,6 +62,7 @@ def freeze(env_file, frozen_file, platform="linux-64"):
# FIXME: adopt micromamba after ordering is fixed
# https://github.com/conda-incubator/conda-lock/issues/79
"--mamba",
+ "--kind=explicit",
f"--platform={platform}",
f"--filename-template={frozen_template}",
f"--file={env_file}",
