[Bug 2078947] [NEW] Import new upstream 0.13.2 release

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You have been subscribed to a public bug by You-Sheng Yang (vicamo):

The v4l2loopback has released v0.13.0 on March 20, 2024, and the latest
v0.13.2 in May. Debian has v0.13.2 as well.

Starting from v4l2loopback v0.13.0, the client usage event has been
upstreamed as part of the official v4l2loopback owning events, and a
different event ID from the one has been used by v4l2-relayd is chosen
to avoid interference of users for other purposes. This, however,
introduced backward compatibility issue for v4l2-relayd, which should
receive similar fix (also with compatibility to different v4l2loopback
versions) as possible.

While Ubuntu ships prebuilt v4l2loopback kernel module in linux-
modules{,-extra} and generic kernel may become hwe kernel of a previous
LTS release, it makes such version bumps tied to series as well.

The plan is:
1. to support both event IDs in v4l2loopback/oracular,
2. while v4l2loopback/oracular is compiled into kernels linux/oracular and linux-oem-6.11/noble, v4l2-relayd/noble should be better adopt the same fix to make sure it will continue to be compatible with latter v4l2loopback from linux-modules{,-extra}.
3. all the kernels in jammy remains unaffected, and so is v4l2-relayd.

Upstream: https://github.com/umlaeute/v4l2loopback/releases/tag/v0.13.2
Debian Trixie: https://packages.debian.org/trixie/v4l2loopback-dkms

** Affects: v4l2-relayd (Ubuntu)
     Importance: Medium
     Assignee: You-Sheng Yang (vicamo)
         Status: Triaged

** Affects: v4l2loopback (Ubuntu)
     Importance: High
     Assignee: You-Sheng Yang (vicamo)
         Status: In Progress

** Affects: v4l2-relayd (Ubuntu Noble)
     Importance: Medium
     Assignee: You-Sheng Yang (vicamo)
         Status: Triaged

** Affects: v4l2loopback (Ubuntu Noble)
     Importance: Undecided
         Status: Won't Fix

** Affects: v4l2-relayd (Ubuntu Oracular)
     Importance: Medium
     Assignee: You-Sheng Yang (vicamo)
         Status: Triaged

** Affects: v4l2loopback (Ubuntu Oracular)
     Importance: High
     Assignee: You-Sheng Yang (vicamo)
         Status: In Progress

-- 
Import new upstream 0.13.2 release
https://bugs.launchpad.net/bugs/2078947
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