Use parenthesis with single-arg lambdas

Use regular expression search/replace to ensure all single-arg
lambdas have parenthesis. This aligns with the style used in Spring
Boot and ensure that single-arg and multi-arg lambdas are consistent.

Issue gh-8945

samples/javaconfig/form/src/main/java/org/springframework/security/samples/config/SecurityConfig.java

@@ -30,17 +30,17 @@ public class SecurityConfig extends WebSecurityConfigurerAdapter {
 	@Override
 	protected void configure(HttpSecurity http) throws Exception {
 		http
-			.authorizeRequests(authorizeRequests ->
+			.authorizeRequests((authorizeRequests) -> 
 				authorizeRequests
 					.antMatchers("/resources/**").permitAll()
 					.anyRequest().authenticated()
 			)
-			.formLogin(formLogin ->
+			.formLogin((formLogin) -> 
 				formLogin
 					.loginPage("/login")
 					.permitAll()
 			)
-			.logout(logout ->
+			.logout((logout) -> 
 				logout
 					.permitAll()
 			);