Fix orphaned gx dependency: 2

[djdv]

#4403 caused the same issue as in #4400
gx dependency hash was not updated in mount_windows.go and causes builds to break on Windows. 🦃

76e1da0:

go install -ldflags="-X "github.com/ipfs/go-ipfs/repo/config".CurrentCommit=76e1da02a"  ./cmd/ipfs
# github.com/ipfs/go-ipfs/commands
commands\request.go:124:35: option.DefaultVal undefined (type cmdkit.Option has no field or method DefaultVal)
make: *** [cmd/ipfs/Rules.mk:26: cmd/ipfs-install] Error 2

bcd2541:

go install -ldflags="-X "github.com/ipfs/go-ipfs/repo/config".CurrentCommit=bcd25416d"  ./cmd/ipfs
# github.com/ipfs/go-ipfs/core/commands
core\commands\mount_windows.go:12:10: cannot use "gx/ipfs/QmSNbH2A1evCCbJSDC6u3RV3GGDhgu6pRGbXHvrN89tMKf/go-ipfs-cmdkit".HelpText literal (type "gx/ipfs/QmSNbH2A1evCCbJSDC6u3RV3GGDhgu6pRGbXHvrN89tMKf/go-ipfs-cmdkit".HelpText) as type "gx/ipfs/QmUyfy4QSr3NXym4etEiRyxBLqqAeKHJuRdi8AACxg63fZ/go-ipfs-cmdkit".HelpText in field value
core\commands\mount_windows.go:18:26: cannot use "gx/ipfs/QmSNbH2A1evCCbJSDC6u3RV3GGDhgu6pRGbXHvrN89tMKf/go-ipfs-cmdkit".ErrNormal (type "gx/ipfs/QmSNbH2A1evCCbJSDC6u3RV3GGDhgu6pRGbXHvrN89tMKf/go-ipfs-cmdkit".ErrorType) as type "gx/ipfs/QmUyfy4QSr3NXym4etEiRyxBLqqAeKHJuRdi8AACxg63fZ/go-ipfs-cmdkit".ErrorType in argument to res.SetError
make: *** [cmd/ipfs/Rules.mk:26: cmd/ipfs-install] Error 2