Missing .meta files for mediators (Liftoff Monetize & Line)

[calumma-robert]

The following 2 mediators are having missing .meta files:
Liftoff Monetize
Line

Resulting in the packages are not getting imported correctly. Please ensure the uploaded github packages are having the .meta files also uploaded, otherwise importing the packages will result in basically a non-working state (as Unity ignores all files/folders without .meta's on import for packages).