[BUG] [java-camel] Align pom.xml generation with the documentation

[sekikn]

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fixes #22887

@bbdouglas @sreeshas @jfiala @lukoyanov @cbornet @jeff9finger @karismann @Zomzog @lwlee2608 @martin-mfg (mentioning the Java technical committee, since there seems no committee for java-camel specifically)

---

Summary by cubic

Aligns java-camel pom.xml generation with the docs by selecting the correct Swagger/OpenAPI annotations via annotationLibrary and removing outdated flags. This ensures the generated POM includes only the expected annotations dependency. Fixes #22887.

• Bug Fixes
  • Default to OpenAPI v3 annotations via annotationLibrary, not the old oas3 flag.
  • Update pom.mustache to conditionally include swagger-annotations 1.x or 2.x based on annotationLibrary.
  • Remove legacy oas3 and library settings from the sample config.
  • Regenerate sample POM to drop the 1.x swagger-annotations dependency.

^{Written for commit 5099630. Summary will update on new commits.}

[cubic-dev-ai]

No issues found across 4 files

[wing328]

thanks for the contribution, which has been merged