This change allows to use `[#xx]` placeholders for issue number.
This change adds go unit test run if .go files were changed.
Signed-off-by: Alex Vanin <a.vanin@yadro.com>
Original shellcheck action requires Docker to run and it's not always
available, especially inside Docker containers. Replacing it with python
wrapper to simplify usage with Docker-based CI systems like Drone and
WoodpeckerCI.
Signed-off-by: Stanislav Bogatyrev <s.bogatyrev@yadro.com>