Parent action: https://github.com/North-Street-Games/nutshells/blob/main/.g... (attach this as a main.yml file in your GitHub actions workflow folder, and change the in-file variables and your secret itch.io butler key as needed!)
Child Godot export action: (for ref) https://github.com/Kwpa/godot-html-export/tree/main
Child itch upload action: (for ref - no different to original) https://github.com/Kwpa/itchio-butler-upload
Note that 4.x Web builds currently do not run well on MacOS browser apps :/ See this: https://github.com/godotengine/godot/issues/70691