fix: assume api client is installed
fix: assume api client is installed

Until pip out-of-tree dependencies work with our setup and we can update
to newer versions of our dependencies, assume api client is installed
without explicitly adding it as a dependency. The install script
installs api_client anyway

Fixes: #1435

LibreTime/libretime,LibreTime/libretime,LibreTime/libretime,LibreTime/libretime,LibreTime/libretime,LibreTime/libretime