• Closes Update kub benchmarks #151
• Closes support pulling a remote apptainer image #233

Done:

• The Poznań test case is available for kub benchmarks
• Users can pass a platforms.apptainer.image.remote field in benchmark config for pulling a remote apptainer image. If the machine uses singularity instead of apptainer, users can pass container.apptainer.executable=singularity to machine config . Otherwise, the name of the container (i.e. apptainer) will be used for pulling the image ( {container_name} pull -F ... )
• Users can also pass a remote_input_dependencies field to specify which resources to download from remote locations. This is done before launching reframe, and destination paths are relative to machine.input_dataset_base_dir.
• TODO: Actually execute the benchmarks on available machines
• Create specs for D3.2 benchmarks (Paris-berlin)
• Use Feel++ syntax for downloading remote data (girder:{...} )