Update DavidAnson/markdownlint-cli2-action action to v20#517

renovate[bot] merged 1 commit intomainnginx/nginx-plus-go-client:mainfrom

renovate/davidanson-markdownlint-cli2-action-20.xnginx/nginx-plus-go-client:renovate/davidanson-markdownlint-cli2-action-20.xCopy head branch name to clipboard