Use registrationId in redirectURI for default provider

Fixes gh-10505

Author: mbhave

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/oauth2/client/CommonOAuth2Provider.java

@@ -95,7 +95,7 @@ public Builder getBuilder(String registrationId) {
 
 	};
 
-	private static final String DEFAULT_REDIRECT_URL = "{scheme}://{serverName}:{serverPort}{contextPath}/oauth2/authorize/code/{clientAlias}";
+	private static final String DEFAULT_REDIRECT_URL = "{scheme}://{serverName}:{serverPort}{contextPath}/oauth2/authorize/code/{registrationId}";
 
 	protected final ClientRegistration.Builder getBuilder(String registrationId,
 			ClientAuthenticationMethod method, String redirectUri) {

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/security/oauth2/client/CommonOAuth2ProviderTests.java

@@ -33,7 +33,7 @@
  */
 public class CommonOAuth2ProviderTests {
 
-	private static final String DEFAULT_REDIRECT_URL = "{scheme}://{serverName}:{serverPort}{contextPath}/oauth2/authorize/code/{clientAlias}";
+	private static final String DEFAULT_REDIRECT_URL = "{scheme}://{serverName}:{serverPort}{contextPath}/oauth2/authorize/code/{registrationId}";
 
 	@Test
 	public void getBuilderWhenGoogleShouldHaveGoogleSettings() throws Exception {