ext: Checkout libaom v3.5.0

Updates the libaom version checked out in the ext and docker scripts
from v3.4.0 to v3.5.0.
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 46c9d31..b2c5e27 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,7 +14,7 @@
 return values of avifImageCopy() and avifImageAllocatePlanes().
 
 ### Changed
-* Update aom.cmd: v3.4.0
+* Update aom.cmd: v3.5.0
 * Update rav1e.cmd: v0.5.1
 * Update svt.cmd/svt.sh: v1.2.1
 * Update libgav1.cmd: v0.18.0
diff --git a/ext/aom.cmd b/ext/aom.cmd
index 9a60525..139b7e1 100755
--- a/ext/aom.cmd
+++ b/ext/aom.cmd
@@ -8,7 +8,7 @@
 : # If you're running this on Windows, be sure you've already run this (from your VC2019 install dir):
 : #     "C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\VC\Auxiliary\Build\vcvars64.bat"
 
-git clone -b v3.4.0 --depth 1 https://aomedia.googlesource.com/aom
+git clone -b v3.5.0 --depth 1 https://aomedia.googlesource.com/aom
 
 cd aom
 mkdir build.libavif
diff --git a/tests/docker/build.sh b/tests/docker/build.sh
index 2bdf1da..5bc0391 100644
--- a/tests/docker/build.sh
+++ b/tests/docker/build.sh
@@ -36,7 +36,7 @@
 
 # aom
 cd
-git clone -b v3.4.0 --depth 1 https://aomedia.googlesource.com/aom
+git clone -b v3.5.0 --depth 1 https://aomedia.googlesource.com/aom
 cd aom
 mkdir build.avif
 cd build.avif