Merge tag 'pull-qga-2025-07-28' of https://repo.or.cz/qemu/armbru into staging

QGA documentation patches for 2025-07-28

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# gpg: Signature made Mon 28 Jul 2025 07:49:27 EDT
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* tag 'pull-qga-2025-07-28' of https://repo.or.cz/qemu/armbru:
  qga: Add cross-references
  qga: Rephrase return docs to avoid type name
  qga: Remove trivial "Returns:" sections
  qga: Fix guest-network-get-route return value documentation

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>