Update Spring-boot to latest version

Author: LEDfan

pom.xml

@@ -12,7 +12,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-                <version>2.3.11.RELEASE</version>
+                <version>2.3.12.RELEASE</version>
 		<relativePath />
 	</parent>