Ignore errno 5 for tox/pytest

Signed-off-by: Samuel Monson <smonson@redhat.com>

Author: sjmonson

.github/actions/run-tox/action.yml

@@ -24,4 +24,6 @@ runs:
     - name: Run tox
       run: |
         tox run -e "${{ inputs.tox-env }}" -- ${{ inputs.tox-args }}
+        # errno 5 means all tests were filtered out, ignore
+        ret=$? && [[ $ret -eq 5 ]] && exit 0; exit $ret
       shell: bash