Frescobaldi release 3.2

Hello,

Current release of Frescobaldi in Debian doesn't work because of Python 3.10 compatibility issues. Version 3.2 has been released, which fixes Python 3.10 issues. Here's a minimalist PR to update the package.

What I did:

• gbp import-orig --uscan
• Refresh patch for 3.2
• gbp dch -R --nmu

Please note this PR won't be enough (because of missing pristine-tar and upstream branches), but also because there's a new dependency on qpageview (https://github.com/frescobaldi/qpageview). This module useed to be included into frescobaldi, but has been put in a separate project. As far as I can tell, it's currently not packaged in Debian