The godot-cpp and libtsm dependecies are built via the SConstruct file
and therefore can be handled by the SCons cache. By caching the
seperately, changes to the submodules were being overwritten.
- Install Gut using gd-plug.
- Add some basic tests.
- Update workflow to run tests.
- Add test and gd-plug install/uninstall recipes to Justfile.
- Re-enable debug builds as these are used by editor when testing.
- Upgrades actions using Node.js 12 to versions using Node.js 16.
- Updates deprecated set-output command.
- Specifies more specific version of CMake on macOS runner.
Only restore git submodules if we have an exact match, otherwise we will
restore outdated submodules over newer ones, then save the outdated
version with the exact match after.
