Fix a few misplaced @WithConverter

[gsmet]

The @WithConverter annotation is different from the @ConvertWith annotation and needs to be placed appropriately on the transformed type.

After this PR, they should all be correctly positioned.

[gsmet]

It won't be all backportable as I think some are new in 3.19 but I will backport what makes sense for 3.18.

[quarkus-bot]

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It should be safe to merge provided you have a look at the other checks in the summary.

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[github-actions]

🎊 PR Preview 2df8c69 has been successfully built and deployed to https://quarkus-pr-main-46297-preview.surge.sh/version/main/guides/

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[quarkus-bot]

Status for workflow Quarkus CI

This is the status report for running Quarkus CI on commit bc3fe92.

✅ The latest workflow run for the pull request has completed successfully.

It should be safe to merge provided you have a look at the other checks in the summary.

You can consult the Develocity build scans.