Start building against Spring Framework 5.3.4 snapshots

See spring-projectsgh-24884

spring-boot-project/spring-boot-dependencies/build.gradle

@@ -1564,7 +1564,7 @@ bom {
 			]
 		}
 	}
-	library("Spring Framework", "5.3.3") {
+	library("Spring Framework", "5.3.4-SNAPSHOT") {
 		group("org.springframework") {
 			imports = [
 				"spring-framework-bom"

spring-boot-project/spring-boot-test-autoconfigure/src/main/java/org/springframework/boot/test/autoconfigure/web/client/MockRestServiceServerAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,6 +18,7 @@
 
 import java.io.IOException;
 import java.lang.reflect.Constructor;
+import java.time.Duration;
 import java.util.Map;
 
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
@@ -97,6 +98,11 @@ public void verify() {
 			getDelegate().verify();
 		}
 
+		@Override
+		public void verify(Duration timeout) {
+			getDelegate().verify(timeout);
+		}
+
 		@Override
 		public void reset() {
 			Map<RestTemplate, RequestExpectationManager> expectationManagers = this.customizer.getExpectationManagers();

spring-boot-project/spring-boot-test/src/main/java/org/springframework/boot/test/web/client/RootUriRequestExpectationManager.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,6 +20,7 @@
 import java.io.OutputStream;
 import java.net.URI;
 import java.net.URISyntaxException;
+import java.time.Duration;
 
 import org.springframework.boot.web.client.RootUriTemplateHandler;
 import org.springframework.http.client.ClientHttpRequest;
@@ -111,6 +112,11 @@ public void verify() {
 		this.expectationManager.verify();
 	}
 
+	@Override
+	public void verify(Duration timeout) {
+		this.expectationManager.verify(timeout);
+	}
+
 	@Override
 	public void reset() {
 		this.expectationManager.reset();