[Bug 48169] Downstream: Adapt metadata to be fetched in logic

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48169

--- Comment #3 from Jacob Hrbek  ---
(In reply to Jacob Hrbek from comment #0)
> - End-users with slow internet connection would have to rely on hard-codded logic unless bugzilla would allow us to fetch a raw file with metadata on the bug (instead of using 'curl' piping to grep and posix regexing whole page)

This is resolved since bugzilla already supports this:
https://bugs.winehq.org/show_bug.cgi?ctype=xml&id=48169