Align StandaloneMockMvcBuilder with trailing slash defaults

Prior to this commit, trailing slash matching was disabled by default in
Spring MVC with gh-28552. `StandaloneMockMvcBuilder` was not changed as
a result and still had the trailing slash match option enabled.

This commit aligns the defaults in `StandaloneMockMvcBuilder` to better
reflect the expected behavior in tests.

Closes gh-32796

Author: evan-mc

Diff for: spring-test/src/main/java/org/springframework/test/web/servlet/setup/StandaloneMockMvcBuilder.java

@@ -132,7 +132,7 @@ public class StandaloneMockMvcBuilder extends AbstractMockMvcBuilder<StandaloneM
 
 	private boolean useSuffixPatternMatch = false;
 
-	private boolean useTrailingSlashPatternMatch = true;
+	private boolean useTrailingSlashPatternMatch = false;
 
 	@Nullable
 	private Boolean removeSemicolonContent;