`flow.yaml` validation errors output wrong line/column numbers

[jshearer]

As I was following the docs on creating a derivation, I made an invalid flow.yaml file. The error tells me

Error: errors while loading catalog sources
Caused by:
    missing field `key` at line 1 column 541

My file’s first line certainly doesn’t have 541 characters in it. @psFried's comment on this is:

I think that might be caused by how we load resources. We first parse them into a generic serde_yaml::Value, and then transcode that into a serde_json::RawValue, and then we deserialize the rust type from that. So makes sense how the original location information would get lost