chore(deps): update dependency org.openapitools:openapi-generator-maven-plugin to v7.15.0

Author: renovate[bot]

ticketing-eai/api-client-internal/pom.xml

@@ -36,7 +36,7 @@
     </developers>
 
     <properties>
-        <openapi-generator-maven-plugin.version>7.14.0</openapi-generator-maven-plugin.version>
+        <openapi-generator-maven-plugin.version>7.15.0</openapi-generator-maven-plugin.version>
         <jackson-databind-nullable.version>0.2.7</jackson-databind-nullable.version>
 
         <!-- Release -->