CHANGELOG.md: Update to AVM research-v12.0.0
Forgot to do this in https://github.com/AOMediaCodec/libavif/pull/2900.
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c2d91e5..6d4e106 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,7 +22,7 @@
* Update libjpeg.cmd/LocalJpeg.cmake: 3.1.1
* Update libxml2.cmd/LocalLibXml2.cmake: v2.14.4
* Update aom.cmd/LocalAom.cmake: v3.13.1
-* Update LocalAom.cmake: AVM research-v11.0.0
+* Update LocalAom.cmake: AVM research-v12.0.0
* Update rav1e.cmd/LocalRav1e.cmake: cargo-c v0.10.14, corrosion v0.5.2,
rav1e v0.8.1
* Update svt.cmd/svt.sh/LocalSvt.cmake: v3.1.2