chore(bots): re-structure grpc folder.

Signed-off-by: Bo-Yi.Wu <appleboy.tw@gmail.com>

routers/api/bots/grpc/health.go

@@ -0,0 +1,19 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package grpc
+
+import (
+	"net/http"
+
+	grpchealth "github.com/bufbuild/connect-grpchealth-go"
+)
+
+func HealthRoute() (string, http.Handler) {
+	// grpcHealthCheck
+	return grpchealth.NewHandler(
+		grpchealth.NewStaticChecker(allServices...),
+		compress1KB,
+	)
+}