fix to get user defined env and use it to set up testing subprocess - #22165

fix to get user defined env and use it to set up testing subprocess#22165

Eleanor Boyd (eleanorjboyd) merged 2 commits into

microsoft:mainmicrosoft/vscode-python:mainfrom

eleanorjboyd:get-env-varseleanorjboyd/vscode-python:get-env-varsCopy head branch name to clipboard