Bump openapi-generator-version from 4.3.0 to 7.5.0

Bumps `openapi-generator-version` from 4.3.0 to 7.5.0.

Updates `org.openapitools:openapi-generator` from 4.3.0 to 7.5.0
- [Release notes](https://github.com/openapitools/openapi-generator/releases)
- [Changelog](https://github.com/OpenAPITools/openapi-generator/blob/master/docs/3.0.0-release-note.md)
- [Commits](OpenAPITools/openapi-generator@v4.3.0...v7.5.0)

Updates `org.openapitools:openapi-generator-cli` from 4.3.0 to 7.5.0

---
updated-dependencies:
- dependency-name: org.openapitools:openapi-generator
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.openapitools:openapi-generator-cli
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

pom.xml

@@ -150,7 +150,7 @@
     </dependencies>
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <openapi-generator-version>4.3.0</openapi-generator-version>
+        <openapi-generator-version>7.5.0</openapi-generator-version>
         <maven-plugin-version>1.0.0</maven-plugin-version>
         <junit-version>4.13.2</junit-version>
     </properties>