Run with `working-directory` not supported

[vabic]

when run with working-directory produce error. Working-directory is not supported.
Ex:
- name: MyStep
uses: mathiasvr/command-output@v1
with:
working-directory: someDir
run: echo "Should work"

produce: Warning: Unexpected input(s) 'working-directory', valid inputs are ['run', 'shell']