feat: GRPC health (#1690)

* grpc_health_v1

* consumer health server

* a test commit, can be reverted if nessesary

* rm toolchain

* testify

* Revert "grpc_health_v1"

This reverts commit 1769d61.

* Reapply "grpc_health_v1"

This reverts commit 9086a5c.

* Revert "a test commit, can be reverted if nessesary"

This reverts commit 659b341.

* remove health for provider

protocol/chainlib/grpcproxy/grpcproxy.go

@@ -13,6 +13,8 @@ import (
 	"golang.org/x/net/http2/h2c"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/health"
+	"google.golang.org/grpc/health/grpc_health_v1"
 	"google.golang.org/grpc/metadata"
 	"google.golang.org/grpc/status"
 )
@@ -28,6 +30,7 @@ type HealthReporter interface {
 func NewGRPCProxy(cb ProxyCallBack, healthCheckPath string, cmdFlags common.ConsumerCmdFlags, healthReporter HealthReporter) (*grpc.Server, *http.Server, error) {
 	serverReceiveMaxMessageSize := grpc.MaxRecvMsgSize(MaxCallRecvMsgSize) // setting receive size to 32mb instead of 4mb default
 	s := grpc.NewServer(grpc.UnknownServiceHandler(makeProxyFunc(cb)), grpc.ForceServerCodec(RawBytesCodec{}), serverReceiveMaxMessageSize)
+	grpc_health_v1.RegisterHealthServer(s, health.NewServer())
 	wrappedServer := grpcweb.WrapServer(s)
 	handler := func(resp http.ResponseWriter, req *http.Request) {
 		// Set CORS headers

protocol/rpcprovider/provider_listener.go

@@ -67,7 +67,6 @@ func NewProviderListener(ctx context.Context, networkAddress lavasession.Network
 		grpc.MaxRecvMsgSize(1024 * 1024 * 32), // setting receive size to 32mb instead of 4mb default
 	}
 	grpcServer := grpc.NewServer(opts...)
-
 	wrappedServer := grpcweb.WrapServer(grpcServer)
 	handler := func(resp http.ResponseWriter, req *http.Request) {
 		// Set CORS headers