My debian/ folder for calindori 23.08.1

Notes:

• tarballs of KDE gear apps got moved to another location (qmlkonsole is also affected, I will take care of it in next weeks)
• we should be now closer to the end of this game of looking for the public PGP key of the developer who tagged every new release actual situation of debian/upstream/signing-key.asc is the one we started (taken from plasma-desktop IIRC) plus Carl Schwan's (added because he tagged 23.01 releases), Heiko Becker's and Albert Astals Cid's. Even if I was told just some developers are in charge of this app's releases, I would like to keep signing-key.asc as general as possible...
• as was discussed in #mobian-dev , blhc failing is likely a false positive (bug report #1043522)

Feel free to start reviewing, I will take care of remaining lintian complaints in the meanwhile 😄

Edit: if I've done it right, I also imported 23.08.1 update (just one line update in d/copyright for that)