It is possible that older versions of Moonraker's update_manager
will fail in its attempt to update python packages. This can lead
to missing modules when the new version of Moonraker is loaded.
When a `ModuleNotFound` error is received during a call to
"load_component" Moonraker will attempt to install its
missing dependencies.
Signed-off-by: Eric Callahan <arksine.code@gmail.com>