Allow subpath H2 console matching

Fixes gh-11926

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/servlet/PathRequest.java

@@ -70,7 +70,8 @@ public final class PathRequest {
 
 		@Override
 		protected void initialized(H2ConsoleProperties h2ConsoleProperties) {
-			this.delegate = new AntPathRequestMatcher(h2ConsoleProperties.getPath());
+			this.delegate = new AntPathRequestMatcher(
+					h2ConsoleProperties.getPath() + "/**");
 		}
 
 		@Override

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/security/servlet/PathRequestTests.java

@@ -47,6 +47,7 @@ public class PathRequestTests {
 	public void toH2ConsoleShouldMatchH2ConsolePath() {
 		RequestMatcher matcher = PathRequest.toH2Console();
 		assertMatcher(matcher).matches("/h2-console");
+		assertMatcher(matcher).matches("/h2-console/subpath");
 		assertMatcher(matcher).doesNotMatch("/js/file.js");
 	}