Add test file of `single line commands` for testing cli input parser

.ci/release.sh

@@ -2,6 +2,7 @@
 
 set -e
 
+git clean -fxd .
 _version=$(git describe --exact-match --tags HEAD || echo $(poetry version -s).dev$(date +%Y%m%d))
 VERSION=${_version#'v'} # remove prefixed 'v' if any
 cp pyproject.toml /tmp/pyproject.toml.1