Commit b9e35c1d for libheif

commit b9e35c1dcc770d7a3678d1dbfdd5b9fc2319db9c
Author: Dirk Farin <dirk.farin@gmail.com>
Date:   Sat Mar 21 21:42:01 2026 +0100

    appveyor: upgrade all vcpkg dependencies again

diff --git a/appveyor.yml b/appveyor.yml
index 147ffc57..114777af 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -10,7 +10,7 @@ environment:
   - arch: arm64

 install:
-  - vcpkg upgrade --no-dry-run aom:%arch%-windows dav1d:%arch%-windows libde265:%arch%-windows libjpeg-turbo:%arch%-windows libpng:%arch%-windows tiff:%arch%-windows zlib:%arch%-windows
+  - vcpkg upgrade --no-dry-run
   - vcpkg install aom:%arch%-windows
   - vcpkg install dav1d:%arch%-windows
   - vcpkg install ffmpeg[avcodec]:%arch%-windows