chore: upgrade springboot

Author: ZheSun88

backend/pom.xml

@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>4.0.0</version>
+		<version>4.0.5</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
@@ -24,7 +24,7 @@
 		<dependency>
 			<groupId>com.vaadin</groupId>
 			<artifactId>exampledata</artifactId>
-			<version>6.2.0</version>
+			<version>7.0.0</version>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>

vaadin-app/pom.xml

@@ -7,7 +7,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>4.0.0</version>
+		<version>4.0.5</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>