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/boot/oauth2webclient/src/main/java/sample/config/SecurityConfig.java

@@ -36,7 +36,7 @@ public class SecurityConfig extends WebSecurityConfigurerAdapter {
 	@Override
 	protected void configure(HttpSecurity http) throws Exception {
 		http
-			.authorizeRequests(authorizeRequests ->
+			.authorizeRequests((authorizeRequests) -> 
 				authorizeRequests
 					.mvcMatchers("/", "/public/**").permitAll()
 					.anyRequest().authenticated()