update vendored dav1d

sezero · sezero · commit 74ecf3489261 · 2025-08-24T17:15:20.000+03:00
(cherry picked from commit bad334d)
diff --git a/external/dav1d b/external/dav1d
@@ -1 +1 @@
-Subproject commit b9d837b382e1bc05c1c54f0cfb7c78bb9551d6d5
+Subproject commit a997c9910c4bb5f28eacf0ec9a87ea0e821e1edf
