router: set correct timeout for egress->ingress envoys (#8051)

Signed-off-by: Kateryna Nezdolii <nezdolik@spotify.com>

Mirrored from https://github.com/envoyproxy/envoy @ 3f7b13264af849ccc8619abb27e97392a1f225da

envoy/config/filter/http/router/v2/router.proto

@@ -65,4 +65,9 @@ message Router {
       }
     }
   }];
+
+  // If not set, ingress Envoy will ignore
+  // :ref:`config_http_filters_router_x-envoy-expected-rq-timeout-ms` header, populated by egress
+  // Envoy, when deriving timeout for upstream cluster.
+  bool respect_expected_rq_timeout = 6;
 }

envoy/config/filter/http/router/v3alpha/router.proto

@@ -65,4 +65,9 @@ message Router {
       }
     }
   }];
+
+  // If not set, ingress Envoy will ignore
+  // :ref:`config_http_filters_router_x-envoy-expected-rq-timeout-ms` header, populated by egress
+  // Envoy, when deriving timeout for upstream cluster.
+  bool respect_expected_rq_timeout = 6;
 }