daedalus-v4l2{,-dkms}: f04d700 -> f55b2cd (UAF lifetime fix)

Bumps all 4 daedalus packages (arch + debian × userspace + dkms)
to pick up daedalus-v4l2 f55b2cd: "kernel: media_request_get/put
around inf->req (UAF safety)".

Closes the SHIP-WITH-EYES-OPEN concern Sonnet flagged in the
pre-deployment review — without explicit media_request_get on
capture + media_request_put on completion, a concurrent
MEDIA_IOC_REQUEST_REINIT or process-kill triggering
buf_request_complete from the cancel path could drop vb2's
reference before our completion handler ran, leaving inf->req
dangling through v4l2_ctrl_request_complete + buf_done.

Matches the cedrus / rkvdec refcount pattern.  No protocol
change, no API change, no consumer-side adjustment required.
Same byte-exact output verified on hertz post-fix (libva path:
match; standalone test_m2m_stream: 30/30 frames).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

arch/daedalus-v4l2/PKGBUILD

@@ -16,16 +16,16 @@
 pkgname=daedalus-v4l2
 _upstreampkg=daedalus-v4l2
 
-# Pin the daedalus-v4l2 tip.  f04d700 = "Phase 8.13: byte-exact end-to-
+# Pin the daedalus-v4l2 tip.  f55b2cd = "Phase 8.13: byte-exact end-to-
 # end via libva (consumer target hit)" — first commit where the full
 # ffmpeg -hwaccel vaapi → libva → /dev/video0 → daemon path lands a
 # pixel-correct decoded frame back in ffmpeg.  Promote to a later pin
 # only after a future phase closes cleanly.
-_commit=f04d7000f858fe51d867aba14a529d3aef4fbd54
+_commit=f55b2cdab8a8c0bc04e8c1bb1d0b6ca85e7d96d2
 
 # 0.1.0 (pre-1.0) + commit count + short sha.  Bump the .Y on each
 # Phase 8.x close.  pkgver() recomputes at build time.
-pkgver=0.1.0.r15.f04d700
+pkgver=0.1.0.r16.f55b2cd
 pkgrel=1
 pkgdesc="Userspace daemon for the daedalus-v4l2 V4L2 stateless decoder shim (VP9/AV1/H.264 on Pi 5 / CM5)"
 arch=('aarch64')