upgrade to metadata-extractor version without stack overflow vulnerability
upgrade to metadata-extractor version without stack overflow vulnerability

scrimage currently uses metadata-extractor 2.12.0, which suffers from a stackoverflow vulnerability (see https://github.com/drewnoakes/metadata-extractor-dotnet/pull/190 for details - in the dotnet version of metadata-extractor)

The vulnerability is fixed in version 2.13.0 of metadata-extractor (see https://github.com/drewnoakes/metadata-extractor-dotnet/pull/190#issuecomment-588491238).

Can we please upgrade to metadata-extractor 2.13.0?
sksamuel/scrimage,sksamuel/scrimage