Add Spring gRPC properties

See gh-50789

Signed-off-by: Tran Ngoc Nhan <ngocnhan.tran1996@gmail.com>

Author: ngocnhan-tran1996

documentation/spring-boot-docs/src/docs/antora/modules/appendix/pages/application-properties/index.adoc

@@ -25,6 +25,8 @@ include::partial$configuration-properties/devtools.adoc[]
 
 include::partial$configuration-properties/docker-compose.adoc[]
 
+include::partial$configuration-properties/grpc.adoc[]
+
 include::partial$configuration-properties/integration.adoc[]
 
 include::partial$configuration-properties/json.adoc[]