errors logged "failed to create baggage member" for values including unicode chars

[frostmar]

We're seeing errors logged when gobin/Detector.Scan attempts to add baggage with unicode values.
When running claircore v1.5.37

Examples:

state:ScanLayers
scanner:gobin
component:gobin/Detector.Scan

error:invalid value: "\\u00c4main.go"
message:failed to create baggage member
value:\u00c4main.go
key:filename

error:invalid value: "NetLock_Arany_=Class_Gold=_F\\u0151tan\\u00fas\\u00edtv\\u00e1ny.pem"
message:failed to create baggage member
value:NetLock_Arany_=Class_Gold=_F\u0151tan\u00fas\u00edtv\u00e1ny.pem
key:filename

error:invalid value: "ca-cert-T\\u00dcRKTRUST_...redacted...\\u011flay\\u0131c\\u0131s\\u0131_H5.pem"         (👈 user filename partly redacted for bug report)
message:failed to create baggage member
value:ca-cert-T\u00dcRKTRUST_...redacted...\u011flay\u0131c\u0131s\u0131_H5.pem
key:filename