protobuf: remove gogoproto

Removes gogo/protobuf from buildx and updates to a version of
moby/buildkit where gogo is removed.

This also changes how the proto files are generated. This is because
newer versions of protobuf are more strict about name conflicts. If two
files have the same name (even if they are relative paths) and are used
in different protoc commands, they'll conflict in the registry.

Since protobuf file generation doesn't work very well with
`paths=source_relative`, this removes the `go:generate` expression and
just relies on the dockerfile to perform the generation.

Signed-off-by: Jonathan A. Sternberg <jonathan.sternberg@docker.com>

vendor/google.golang.org/grpc/resolver/dns/dns_resolver.go

@@ -18,19 +18,43 @@
 
 // Package dns implements a dns resolver to be installed as the default resolver
 // in grpc.
-//
-// Deprecated: this package is imported by grpc and should not need to be
-// imported directly by users.
 package dns
 
 import (
+	"time"
+
 	"google.golang.org/grpc/internal/resolver/dns"
 	"google.golang.org/grpc/resolver"
 )
 
+// SetResolvingTimeout sets the maximum duration for DNS resolution requests.
+//
+// This function affects the global timeout used by all channels using the DNS
+// name resolver scheme.
+//
+// It must be called only at application startup, before any gRPC calls are
+// made. Modifying this value after initialization is not thread-safe.
+//
+// The default value is 30 seconds. Setting the timeout too low may result in
+// premature timeouts during resolution, while setting it too high may lead to
+// unnecessary delays in service discovery. Choose a value appropriate for your
+// specific needs and network environment.
+func SetResolvingTimeout(timeout time.Duration) {
+	dns.ResolvingTimeout = timeout
+}
+
 // NewBuilder creates a dnsBuilder which is used to factory DNS resolvers.
 //
 // Deprecated: import grpc and use resolver.Get("dns") instead.
 func NewBuilder() resolver.Builder {
 	return dns.NewBuilder()
 }
+
+// SetMinResolutionInterval sets the default minimum interval at which DNS
+// re-resolutions are allowed. This helps to prevent excessive re-resolution.
+//
+// It must be called only at application startup, before any gRPC calls are
+// made. Modifying this value after initialization is not thread-safe.
+func SetMinResolutionInterval(d time.Duration) {
+	dns.MinResolutionInterval = d
+}