Bump com.jayway.jsonpath:json-path in /retailstore-rest-server

Bumps [com.jayway.jsonpath:json-path](https://github.com/jayway/JsonPath) from 2.6.0 to 2.9.0.
- [Release notes](https://github.com/jayway/JsonPath/releases)
- [Changelog](https://github.com/json-path/JsonPath/blob/master/changelog.md)
- [Commits](json-path/JsonPath@json-path-2.6.0...json-path-2.9.0)

---
updated-dependencies:
- dependency-name: com.jayway.jsonpath:json-path
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

retailstore-rest-server/pom.xml

@@ -117,7 +117,7 @@
         <dependency>
             <groupId>com.jayway.jsonpath</groupId>
             <artifactId>json-path</artifactId>
-            <version>2.6.0</version>
+            <version>2.9.0</version>
             <scope>test</scope>
         </dependency>