XML parsing errors in tests

[Caolán McNamara]

On Sun, 2025-05-11 at 08:45 +0300, Ilmari Lauhakangas wrote:
> I have reports from two devs on Windows and Linux about XML parsing 
> errors while running tests.
> 
> On Windows:
> 
> C:/cygwin/home/user/lode/dev/core/sfx2/source/doc/objmisc.cxx:1822" 
> while loading 
> <file:///C:/cygwin/home/user/lode/dev/core//vcl/qa/cppunit/pdfexport/
> data//forcepoint71.key>

For this, and maybe others, failure to load is fine as long as it
doesn't crash and that's all that that file is tested for. Though
originally I believe it loaded further until additional .zip
consistency checks were added.