fix client sampling annotation (#26751)

Signed-off-by: wangkai19 <wangkai19@corp.netease.com>

Mirrored from https://github.com/envoyproxy/envoy @ b5ff42d5025a669065902c7a45f5088c31b2fbbc

envoy/api/v2/route/route_components.proto

@@ -1265,7 +1265,7 @@ message Tracing {
   // Target percentage of requests managed by this HTTP connection manager that will be force
   // traced if the :ref:`x-client-trace-id <config_http_conn_man_headers_x-client-trace-id>`
   // header is set. This field is a direct analog for the runtime variable
-  // 'tracing.client_sampling' in the :ref:`HTTP Connection Manager
+  // 'tracing.client_enabled' in the :ref:`HTTP Connection Manager
   // <config_http_conn_man_runtime>`.
   // Default: 100%
   type.FractionalPercent client_sampling = 1;

envoy/config/filter/network/http_connection_manager/v2/http_connection_manager.proto

@@ -127,7 +127,7 @@ message HttpConnectionManager {
     // Target percentage of requests managed by this HTTP connection manager that will be force
     // traced if the :ref:`x-client-trace-id <config_http_conn_man_headers_x-client-trace-id>`
     // header is set. This field is a direct analog for the runtime variable
-    // 'tracing.client_sampling' in the :ref:`HTTP Connection Manager
+    // 'tracing.client_enabled' in the :ref:`HTTP Connection Manager
     // <config_http_conn_man_runtime>`.
     // Default: 100%
     type.Percent client_sampling = 3;

envoy/config/route/v3/route_components.proto

@@ -1772,7 +1772,7 @@ message Tracing {
   // Target percentage of requests managed by this HTTP connection manager that will be force
   // traced if the :ref:`x-client-trace-id <config_http_conn_man_headers_x-client-trace-id>`
   // header is set. This field is a direct analog for the runtime variable
-  // 'tracing.client_sampling' in the :ref:`HTTP Connection Manager
+  // 'tracing.client_enabled' in the :ref:`HTTP Connection Manager
   // <config_http_conn_man_runtime>`.
   // Default: 100%
   type.v3.FractionalPercent client_sampling = 1;

envoy/extensions/filters/network/http_connection_manager/v3/http_connection_manager.proto

@@ -150,7 +150,7 @@ message HttpConnectionManager {
     // Target percentage of requests managed by this HTTP connection manager that will be force
     // traced if the :ref:`x-client-trace-id <config_http_conn_man_headers_x-client-trace-id>`
     // header is set. This field is a direct analog for the runtime variable
-    // 'tracing.client_sampling' in the :ref:`HTTP Connection Manager
+    // 'tracing.client_enabled' in the :ref:`HTTP Connection Manager
     // <config_http_conn_man_runtime>`.
     // Default: 100%
     type.v3.Percent client_sampling = 3;