feat(cli): bump official generator version to 7.9

Author: DmitrySboychakov

openapi-generator-cli/lib/openapi-generator.jar

@@ -47,7 +47,7 @@
         <dependency>
             <groupId>org.openapitools</groupId>
             <artifactId>openapi-generator-cli</artifactId>
-            <version>7.7.0</version>
+            <version>7.9.0</version>
         </dependency>
 
         <dependency>