Remove libavif from pack-libs.yml dependencies

crazywhalecc/static-php-cli#1033

Author: crazywhalecc

.github/workflows/pack-libs.yml

@@ -51,7 +51,6 @@ jobs:
           - brotli
           - libargon2
           - libiconv
-          - libavif
           - libpng
           - icu
           - libcares