Wrong file names on STAC metadata for Sentinel 1 GRD products

[jgomezdans]

I have found that some Sentinel 1 GRD products link to the wrong file. Changing the file to what ought to be works, so I guess that there's a bug in building up the STAC metadata. For example, in some files, the schema-product-vv asset points to /rfi/rfi-iw-vv.xml, rather than /iw-vv.xml.

It's easily solved by hard-coding the filename in the URL, and I only noticed it in some granules. Just flagging it here.