Update dependencies

- github.com/distribution/distribution/v3 to v3.0.0-20230223072852-e5d5810851d
- github.com/fluxcd/pkg/oci to v0.20.0
- github.com/fluxcd/pkg/sourceignore to v0.3.2
- github.com/onsi/gomega to v1.27.1

Signed-off-by: Hidde Beydals <hello@hidde.co>