Dependency upgrades.

Author: costas80

pom.xml

@@ -11,7 +11,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>2.2.7.RELEASE</version>
+        <version>2.3.3.RELEASE</version>
     </parent>
     <modules>
         <module>jsonvalidator-common</module>