Env variables for reusable actions not usable

[lschoenepxc]

Issue with using environment variables for inputs of reusable actions. Used workaround: https://github.com/orgs/community/discussions/51280

You can see in the draft build-and-test-tool.yml that env variables are set but only being used in steps directly defined in the same yml. Now the variables are set as outputs of the first step as a workaround.
Better than defining every input hardcoded for every step as done previously.