fix(quickstart-gateway-service): fix route failure caused by Spring Cloud Gateway 5.x property prefix change

spring-cloud-tencent-examples/polaris-router-grayrelease-lane-example/router-grayrelease-lane-gateway/src/main/resources/application.yml

@@ -19,6 +19,8 @@ spring:
       stat:
         enabled: true
     gateway:
+      server:
+        webflux:
           discovery:
             locator:
               enabled: true

spring-cloud-tencent-examples/quickstart-example/quickstart-gateway-mvc-service/src/main/resources/application.yml

@@ -18,7 +18,8 @@ spring:
         enabled: true
         port: 28085
     gateway:
-      mvc:
+      server:
+        webmvc:
           routes:
             - id: QuickstartCallerService
               uri: lb://QuickstartCallerService

spring-cloud-tencent-examples/tsf-example/msgw-scg/src/main/resources/bootstrap.yml

@@ -7,6 +7,8 @@ spring:
     name: msgw-scg
   cloud:
     gateway:
+      server:
+        webflux:
           discovery:
             locator:
               enabled: true