Merge tag 'pull-request-2025-01-02' of https://gitlab.com/thuth/qemu into staging

* Update year in copyright statements
* Convert the VNC test to the functional framework
* Improve and update the pp

Merge tag 'pull-request-2025-01-02' of https://gitlab.com/thuth/qemu into staging

* Update year in copyright statements
* Convert the VNC test to the functional framework
* Improve and update the ppc64_hv functional test
* Fix broken rx_gdbsim and arm_quanta_gsj functional tests

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# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg: aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg: aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg: aka "Thomas Huth <th.huth@posteo.de>" [unknown]
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* tag 'pull-request-2025-01-02' of https://gitlab.com/thuth/qemu:
tests/functional/test_arm_quanta_gsj: Fix broken test
tests/functional/test_rx_gdbsim: Use stable URL for test_linux_sash
tests/functional/test_ppc64_hv: Update to Alpine 3.21.0
tests/functional/test_ppc64_hv: Update repo management
tests/functional/test_ppc64_hv: Simplify console handling
tests/functional: Extract the find_free_ports() function into a helper file
tests/functional/test_vnc: Remove the test_no_vnc test
tests/functional/test_vnc: Do not use a hard-coded VNC port
tests/functional: Convert the vnc test
docs: update copyright date to the year 2025

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

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tests/functional: Extract the find_free_ports() function into a helper file

We'll need this functionality in other functional tests, too, so
let's extract it into the qemu_test module.
Also add an

tests/functional: Extract the find_free_ports() function into a helper file

We'll need this functionality in other functional tests, too, so
let's extract it into the qemu_test module.
Also add an __enter__ and __exit__ function that can be used for
using this functionality in a locked context, so that tests that
are running in parallel don't try to compete for the same ports
later.
Also make sure to only use ports in the "Dynamic Ports" range
(see https://www.rfc-editor.org/rfc/rfc6335) and "randomize" the
start of the probed range with the PID of the test process to
further avoid possible clashes with other competing processes.

Message-ID: <20241218131439.255841-5-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

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