[Bug]: Hard-coded product specification version for static layers

[vbrancat]

Checked for duplicates

Yes - I've already checked

Describe the bug

At the moment, the CSLC-S1 workflow can generate independently CSLC-S1 products and CSLC-S1 static layers products.
For the generation of the CSLC-S1 products, we are able to assign product_version and product_specification_version from the runconfiguration file. Those two values get written inside the CSLC-S1 products.

Instead, for the CSLC-S1 static layers, the SAS is only able to write in the product_version while the product_specification_version is hard-coded within the SAS

What did you expect?

I expected that the CSLC-S1 would take the product_specification_version value from the runconfiguration file and assign it to the identification/product_specification_version field of the CSLC-S1 static layers product

Reproducible steps

Run the SAS to generate static layers

Environment

COMPASS v0.4.0