Update github.com/leodido/go-urn to v1.2.1

[nfoecking]

Hello,

my project uses your library as a dependency. When doing a security test using trivy (https://github.com/aquasecurity/trivy), I found an issue in your library. You use an old version of github.com/stretchr/testify that uses an old version of github.com/leodido/go-urn which contains a security issue because it uses an old version of gopkg.in/yaml.v2-2.2.2 that has a security issue (see https://nvd.nist.gov/vuln/detail/CVE-2019-11254).

Would it be possible to update the dependency to v1.2.1 and release a new version?

Best regards
Niklas

[deankarn]

Fixed in #801