updated spring initializr with the new version (#23999)

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## Description

This PR:

- Updates the old Spring Initializr screenshot page with the latest one
- Updates Spring Boot to 4.0.1 version


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## Related issues or tickets

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## Reviews

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- [ ] Technical review
- [ ] Editorial review
- [ ] Product review

Author: ajeetraina

content/get-started/docker-concepts/building-images/images/multi-stage-builds-spring-initializer.webp

@@ -58,13 +58,13 @@ In this hands-on guide, you'll unlock the power of multi-stage builds to create
 1. [Download and install](https://www.docker.com/products/docker-desktop/) Docker Desktop.
 
 
-2. Open this [pre-initialized project](https://start.spring.io/#!type=maven-project&language=java&platformVersion=3.4.0-M3&packaging=jar&jvmVersion=21&groupId=com.example&artifactId=spring-boot-docker&name=spring-boot-docker&description=Demo%20project%20for%20Spring%20Boot&packageName=com.example.spring-boot-docker&dependencies=web) to generate a ZIP file. Here’s how that looks:
+2. Open this [pre-initialized project](https://start.spring.io/#!type=maven-project&language=java&platformVersion=4.0.1&packaging=jar&configurationFileFormat=properties&jvmVersion=21&groupId=com.example&artifactId=spring-boot-docker&name=spring-boot-docker&description=Demo%20project%20for%20Spring%20Boot&packageName=com.example.spring-boot-docker&dependencies=web) to generate a ZIP file. Here’s how that looks:
 
 
     ![A screenshot of Spring Initializr tool selected with Java 21, Spring Web and Spring Boot 3.4.0](images/multi-stage-builds-spring-initializer.webp?border=true)
 
 
-    [Spring Initializr](https://start.spring.io/) is a quickstart generator for Spring projects. It provides an extensible API to generate JVM-based projects with implementations for several common concepts — like basic language generation for Java, Kotlin, and Groovy. 
+    [Spring Initializr](https://start.spring.io/) is a quickstart generator for Spring projects. It provides an extensible API to generate JVM-based projects with implementations for several common concepts — like basic language generation for Java, Kotlin, Groovy, and Maven. 
 
     Select **Generate** to create and download the zip file for this project.