fix: samples/server/petstore/spring-mvc-no-nullable/pom.xml to reduce…

… vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JAVA-ORGSPRINGFRAMEWORK-2436751

samples/server/petstore/spring-mvc-no-nullable/pom.xml

@@ -148,7 +148,7 @@
         <dependency>
             <groupId>org.springframework.data</groupId>
             <artifactId>spring-data-commons</artifactId>
-            <version>2.0.11.RELEASE</version>
+            <version>2.5.11</version>
         </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>