hack: avoid updating generated proto version

This can be done as a separate change when needed.
Also should analyze if this would affect the gogo
incompatibility issues with newer proto.

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>

hack/update-generated-files

@@ -4,16 +4,17 @@
 set -eu
 
 gogo_version=$(awk '$1 == "github.com/gogo/protobuf" { print $2 }' go.mod)
-protobuf_version=$(awk '$3 == "github.com/golang/protobuf" { print $4 }' go.mod)
+# protobuf_version=$(awk '$3 == "github.com/golang/protobuf" { print $4 }' go.mod)
 output=$(mktemp -d -t buildctl-output.XXXXXXXXXX)
 
 buildxCmd build \
   --target "update" \
   --build-arg "GOGO_VERSION=$gogo_version" \
-  --build-arg "PROTOBUF_VERSION=$protobuf_version" \
   --output "type=local,dest=$output" \
   --file "./hack/dockerfiles/generated-files.Dockerfile" \
   .
 
+# --build-arg "PROTOBUF_VERSION=$protobuf_version" \
+
 cp -R "$output/generated-files/" .
 rm -rf $output