Go 1.27 incompatibility

[gotmax23]

Hi, we are currently shipping Go 1.27.0rc2 in Fedora Rawhide as part of our early integration work of new toolchain versions. trivy 0.74.0 is failing to build in our environment because of this change. I was able to reproduce this on the main branch of trivy with the upstream Go toolchain builds as well:

$ git show -q --format=%H
dcbadb7b15076c405ce7d59f04cde9991b90da22
$ GOTOOLCHAIN=go1.27rc2 mage build
# github.com/aquasecurity/trivy/pkg/x/json
pkg/x/json/json.go:109:16: undefined: json.SkipFunc
Error: running "go build -ldflags -s -w -X=github.com/aquasecurity/trivy/pkg/version/app.ver=0.74.0-3-gdcbadb7b1 /home/gotmax/dev/packaging/trivy/upstream/cmd/trivy" failed with exit code 1

[gotmax23]

Go 1.27.0 GA was released today.

[nikpivkin]

Fixed #11127