Add Bootstrapper initialize method to fix typo

See gh-25400

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/Bootstrapper.java

@@ -31,6 +31,17 @@ public interface Bootstrapper {
 	 * Initialize the given {@link BootstrapRegistry} with any required registrations.
 	 * @param registry the registry to initialize
 	 */
+	default void initialize(BootstrapRegistry registry) {
+		intitialize(registry);
+	}
+
+	/**
+	 * Initialize the given {@link BootstrapRegistry} with any required registrations.
+	 * @param registry the registry to initialize
+	 * @deprecated since 2.4.4 in favor of
+	 * {@link Bootstrapper#initialize(BootstrapRegistry)}
+	 */
+	@Deprecated
 	void intitialize(BootstrapRegistry registry);
 
 }

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/SpringApplication.java

@@ -349,7 +349,7 @@ public class SpringApplication {
 
 	private DefaultBootstrapContext createBootstrapContext() {
 		DefaultBootstrapContext bootstrapContext = new DefaultBootstrapContext();
-		this.bootstrappers.forEach((initializer) -> initializer.intitialize(bootstrapContext));
+		this.bootstrappers.forEach((initializer) -> initializer.initialize(bootstrapContext));
 		return bootstrapContext;
 	}