build(deps): bump org.openapitools:openapi-generator-maven-plugin

Bumps org.openapitools:openapi-generator-maven-plugin from 7.14.0 to 7.15.0.

---
updated-dependencies:
- dependency-name: org.openapitools:openapi-generator-maven-plugin
  dependency-version: 7.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -83,7 +83,7 @@
         <plugin>
           <groupId>org.openapitools</groupId>
           <artifactId>openapi-generator-maven-plugin</artifactId>
-          <version>7.14.0</version>
+          <version>7.15.0</version>
           <executions>
             <execution>
               <goals>