Update miniforge3-4.9.2

OS X arm64 will be installed with Python 3.9 only. Other versions bundled with python 3.8. Miniforge does not have as wide a choice of python versions as miniconda.
The Python version is specific only to the base environment.

plugins/python-build/share/python-build/miniforge3-4.9.2

@@ -6,10 +6,10 @@ case "$(anaconda_architecture 2>/dev/null || true)" in
   install_script "Miniforge3-4.9.2-5-Linux-x86_64" "https://github.com/conda-forge/miniforge/releases/download/4.9.2-5/Miniforge3-4.9.2-5-Linux-x86_64.sh#73ea193f82d8f3b558b9c2186a147bcf" "miniconda" verify_py38
   ;;
 "MacOSX-arm64" )
-  install_script "Miniforge3-4.9.2-5-MacOSX-arm64" "https://github.com/conda-forge/miniforge/releases/download/4.9.2-5/Miniforge3-4.9.2-5-MacOSX-arm64.sh#cf309b725c8a0b4448e4ee922703bf00" "miniconda" verify_py38
+  install_script "Miniforge3-4.9.2-5-MacOSX-arm64" "https://github.com/conda-forge/miniforge/releases/download/4.9.2-5/Miniforge3-4.9.2-5-MacOSX-arm64.sh#cf309b725c8a0b4448e4ee922703bf00" "miniconda" verify_py39
   ;;
 "MacOSX-x86_64" )
-  install_script "Miniforge3-4.9.2-5-MacOSX-x86_64" "https://github.com/conda-forge/miniforge/releases/download/4.9.2-5/Miniforge3-4.9.2-5-MacOSX-x86_64.sh#e66d62e8872bc1548af54063cab7b72e" "miniconda" verify_py39
+  install_script "Miniforge3-4.9.2-5-MacOSX-x86_64" "https://github.com/conda-forge/miniforge/releases/download/4.9.2-5/Miniforge3-4.9.2-5-MacOSX-x86_64.sh#e66d62e8872bc1548af54063cab7b72e" "miniconda" verify_py38
   ;;
 * )
   { echo