Merge pull request #50789 from ngocnhan-tran1996

Closes gh-50789

* gh-50789:
  Add Spring gRPC properties

Author: wilkinsona

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[]