fix caching of properties

[maxandersen]

fixes #33629 #33628 #33626

using append child to ensure it includes parent config too.

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[maxandersen]

Doh. Same bad syntax bug. Will fix when back.

[gsmet]

@maxandersen pluginManagement needs to be nested inside build. I fixed it but... any chance you could test this before we merge?

[gsmet]

BTW, I force pushed a fix already :)

[quarkus-bot]

✔️ 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.

[maxandersen]

any chance you could test this before we merge?

yeah, i tested it but hadn't committed the last changes. your push fixes it and now works afaics in local and ci. merging.