Update x/crypto to latest version

We're stuck at v0.24.0. This is what happens as v0.25.0:

$ go build ./...
/home/MYUSER/go/pkg/mod/golang.org/x/crypto@v0.25.0/curve25519/curve25519.go:13:8: package crypto/ecdh is not in GOROOT (/usr/local/go/src/crypto/ecdh)

Looks go version related.