/usr/share/gocode/src/github.com/dgrijalva/jwt-go/test/ is in golang-github-dgrijalva-jwt-go-dev 3.0.0.1+REALLY.2.6.0-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/gocode/src/github.com/dgrijalva/jwt-go/test/ec256-private.pem
/usr/share/gocode/src/github.com/dgrijalva/jwt-go/test/ec256-public.pem
/usr/share/gocode/src/github.com/dgrijalva/jwt-go/test/ec384-private.pem
/usr/share/gocode/src/github.com/dgrijalva/jwt-go/test/ec384-public.pem
/usr/share/gocode/src/github.com/dgrijalva/jwt-go/test/ec512-private.pem
/usr/share/gocode/src/github.com/dgrijalva/jwt-go/test/ec512-public.pem
/usr/share/gocode/src/github.com/dgrijalva/jwt-go/test/hmacTestKey
/usr/share/gocode/src/github.com/dgrijalva/jwt-go/test/sample_key
/usr/share/gocode/src/github.com/dgrijalva/jwt-go/test/sample_key.pub