Bump quarkiverse-parent from 13 to 15 (#359)

Bumps [quarkiverse-parent](https://github.com/quarkiverse/quarkiverse-parent) from 13 to 15.
- [Release notes](https://github.com/quarkiverse/quarkiverse-parent/releases)
- [Commits](https://github.com/quarkiverse/quarkiverse-parent/commits)

---
updated-dependencies:
- dependency-name: io.quarkiverse:quarkiverse-parent
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -4,7 +4,7 @@
   <parent>
     <groupId>io.quarkiverse</groupId>
     <artifactId>quarkiverse-parent</artifactId>
-    <version>13</version>
+    <version>15</version>
   </parent>
   <groupId>io.quarkiverse.openapi.generator</groupId>
   <artifactId>quarkus-openapi-generator-parent</artifactId>