Windows unit test cannot be compiled

[qweeah]

What happened in your environment?

When compiling windows golang unit tests, got bellow error

> go test -count=1 ./...
# oras.land/oras/internal/testutils
internal\testutils\console.go:34:37: undefined: containerd.NewPty

What did you expect to happen?

The unit test should be compiled and run successfully

How can we reproduce it?

Run go test -count=1 ./... on Windows

What is the version of your ORAS CLI?

Dev branch on 5280c67

What is your OS environment?

Windows 11

Are you willing to submit PRs to fix it?

• Yes, I am willing to fix it.