ESDC - Preprocessing of RTSIF is failing due to missing input files 

The preprocessing of RTSIF is failing in the ESDC recipe due to missing input files. Please include RTSIF in the inputs collect section described in the recipe.

https://github.com/deepesdl/cube-gen/blob/main/ESDC/inputs-preprocess/SIF/RTSIF/sif-rtsif-metadata.py#L8