Add working directory to build plugin action, enable yarn 4 - #28

Add working directory to build plugin action, enable yarn 4#28

SandersAaronD wants to merge 5 commits into

grafana:maingrafana/plugin-actions:mainfrom

SandersAaronD:sandersaarond/build-plugin-add-workdirSandersAaronD/plugin-actions:sandersaarond/build-plugin-add-workdirCopy head branch name to clipboard