Merge pull request #13 from jmp/upgrade-spring-boot

Upgrade to Spring Boot 2.7.1

Author: simonharrer

pom.xml

@@ -6,7 +6,7 @@
   <parent>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
-    <version>2.5.5</version>
+    <version>2.7.1</version>
     <relativePath/> <!-- lookup parent from repository -->
   </parent>
   <groupId>sh.mob</groupId>