chore(ci): also build examples

[meowgorithm]

No description provided.

[meowgorithm]

@aymanbagabas @caarlos0: Any idea why the SSH example doesn't build? Not working locally either, getting:

# github.com/caarlos0/sshmarshal
../../../../.go/pkg/mod/github.com/caarlos0/sshmarshal@v0.1.0/marshal.go:29:6: MarshalPrivateKey already declared through dot-import of package ssh ("golang.org/x/crypto/ssh")
        ../../../../.go/pkg/mod/golang.org/x/crypto@v0.17.0/ssh/keys.go:302:6: other declaration of MarshalPrivateKey
../../../../.go/pkg/mod/github.com/caarlos0/sshmarshal@v0.1.0/marshal.go:35:6: MarshalPrivateKeyWithPassphrase already declared through dot-import of package ssh ("golang.org/x/crypto/ssh")
        ../../../../.go/pkg/mod/golang.org/x/crypto@v0.17.0/ssh/keys.go:308:6: other declaration of MarshalPrivateKeyWithPassphrase

[aymanbagabas]

github.com/caarlos0/sshmarshal

github.com/caarlos0/sshmarshal is no longer needed and can be replaced with golang.org/x/crypto ssh package.

[meowgorithm]

Where’s the dependency? I checked charmbracelet/wish and charmbracelet/ssh and didn't see it.