Add support for building Fedora 41.

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Checklist for the reviewer of the PR (will be processed by the Bareos team)

Make sure you check/merge the PR using devtools/pr-tool to have some simple automated checks run and a proper changelog record added.

General

• Is the PR title usable as CHANGELOG entry?
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• Required backport PRs have been created
• Correct milestone is set
• Make sure PR1996 build script adaptions is merged also

Source code quality

• Source code changes are understandable
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• Required documentation changes are present and part of the PR