GP-83 upgrade Spring versions

Author: tboychuk

3-0-spring-framework/3-0-0-hello-spring-framework/pom.xml

@@ -15,7 +15,7 @@
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-context</artifactId>
-            <version>5.2.12.RELEASE</version>
+            <version>5.3.6</version>
         </dependency>
         <dependency>
             <groupId>com.bobocode</groupId>