go.mod: fix sops dependency

Taken from https://github.com/dagger/dagger/pull/239

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>

cmd/dagger/cmd/compute.go

@@ -9,8 +9,8 @@ import (
 	"dagger.io/go/cmd/dagger/cmd/common"
 	"dagger.io/go/cmd/dagger/logger"
 	"dagger.io/go/dagger"
-	"go.mozilla.org/sops"
-	"go.mozilla.org/sops/decrypt"
+	"go.mozilla.org/sops/v3"
+	"go.mozilla.org/sops/v3/decrypt"
 
 	"github.com/google/uuid"
 	"github.com/spf13/cobra"

go.mod

@@ -8,7 +8,7 @@ require (
 	github.com/containerd/console v1.0.1
 	github.com/docker/distribution v2.7.1+incompatible
 	github.com/emicklei/proto v1.9.0 // indirect
-	github.com/google/uuid v1.2.0 // indirect
+	github.com/google/uuid v1.2.0
 	github.com/jaguilar/vt100 v0.0.0-20150826170717-2703a27b14ea
 	github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db
 	github.com/moby/buildkit v0.8.2
@@ -17,24 +17,19 @@ require (
 	github.com/opentracing/opentracing-go v1.2.0
 	github.com/rs/zerolog v1.21.0
 	github.com/spf13/cobra v1.1.3
-	github.com/spf13/pflag v1.0.5
 	github.com/spf13/viper v1.7.1
-	github.com/stretchr/testify v1.5.1 // indirect
+	github.com/stretchr/testify v1.5.1
 	github.com/tonistiigi/fsutil v0.0.0-20201103201449-0834f99b7b85
 	github.com/tonistiigi/units v0.0.0-20180711220420-6950e57a87ea
 	github.com/uber/jaeger-client-go v2.25.0+incompatible
-	go.mozilla.org/sops v0.0.0-20190912205235-14a22d7a7060
+	go.mozilla.org/sops/v3 v3.7.0
 	golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9
-	golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c // indirect
 	golang.org/x/term v0.0.0-20201117132131-f5c789dd3221
 	golang.org/x/time v0.0.0-20200416051211-89c76fbcd5d1
-	golang.org/x/tools v0.1.0 // indirect
-	gopkg.in/yaml.v3 v3.0.0-20200506231410-2ff61e1afc86
+	gopkg.in/yaml.v3 v3.0.0-20210107172259-749611fa9fcc
 )
 
 replace (
-	// protobuf: corresponds to containerd
-	github.com/golang/protobuf => github.com/golang/protobuf v1.3.5
 	github.com/hashicorp/go-immutable-radix => github.com/tonistiigi/go-immutable-radix v0.0.0-20170803185627-826af9ccf0fe
 	github.com/jaguilar/vt100 => github.com/tonistiigi/vt100 v0.0.0-20190402012908-ad4c4a574305
 	// genproto: corresponds to containerd