update ambermini to fix conda-build error from cond 2.4.3 update
update ambermini to fix conda-build error from cond 2.4.3 update

cwehmeyer/conda-recipes,omnia-md/conda-recipes,jchodera/conda-recipes,swails/conda-recipes,peastman/conda-recipes,peastman/conda-recipes,swails/conda-recipes,swails/conda-recipes,cwehmeyer/conda-recipes,swails/conda-recipes,jchodera/conda-recipes,cwehmeyer/conda-recipes,jchodera/conda-recipes,jchodera/conda-recipes,cwehmeyer/conda-recipes,omnia-md/conda-recipes,peastman/conda-recipes,omnia-md/conda-recipes