Merge bitcoin/bitcoin#26913: doc: Clarify debian copyright comment

faa05cd8ce doc: Clarify debian copyright comment (MarcoFalke)

Pull request description:

  Seems fragile to link to an external site for a list of "current" devs. Also, current devs shouldn't matter in this context. It might be better to explain where *all* contributors are found, so do that instead.

ACKs for top commit:
  fanquake:
    ACK faa05cd8ce
  john-moffett:
    ACK faa05cd8ce

Tree-SHA512: 0695c8da86b7c3efbd13e7c1d645528dbd402c18ddd63d8bc532d42de9aa4e40d0f04f3c1e1208806e74ca9fbe3cb967d5206ca59fec20c35cafd22271deecf4

contrib/debian/copyright

@@ -7,8 +7,8 @@ Source: https://github.com/bitcoin/bitcoin
 Files: *
 Copyright: 2009-2023, Bitcoin Core Developers
 License: Expat
-Comment: The Bitcoin Core Developers encompasses the current developers listed on bitcoin.org,
-         as well as the numerous contributors to the project.
+Comment: The Bitcoin Core Developers encompasses all contributors to the
+         project, listed in the release notes or the git log.
 
 Files: debian/*
 Copyright: 2010-2011, Jonas Smedegaard <dr@jones.dk>