Update org.springframework.boot.version to v3.3.0

Author: xdev-renovate

template-placeholder-demo/pom.xml

@@ -26,7 +26,7 @@
 		<!-- Dependency-Versions -->
 		<vaadin.version>24.3.12</vaadin.version>
 
-		<org.springframework.boot.version>3.2.5</org.springframework.boot.version>
+		<org.springframework.boot.version>3.3.0</org.springframework.boot.version>
 	</properties>
 
 	<dependencyManagement>