gd2: Do not use libavif

See: https://trac.macports.org/ticket/70546

graphics/gd2/Portfile

@@ -10,7 +10,7 @@ PortGroup                   legacysupport 1.0
 legacysupport.newest_darwin_requires_legacy 10
 
 github.setup                libgd libgd 2.3.3 gd-
-revision                    6
+revision                    7
 checksums                   rmd160  97564248f7f14e90921c5571ff69d1aba5e016cc \
                             sha256  3fe822ece20796060af63b7c60acb151e5844204d289da0ce08f8fdf131e5a61 \
                             size    2809056
@@ -40,12 +40,11 @@ github.tarball_from         releases
 use_xz                      yes
 
 depends_build               port:gettext \
-                            port:pkgconfig
+                            path:bin/pkg-config:pkgconfig
 
 depends_lib                 port:freetype \
                             port:fontconfig \
                             path:include/turbojpeg.h:libjpeg-turbo \
-                            port:libavif \
                             port:libheif \
                             port:libiconv \
                             port:libpng \
@@ -58,13 +57,13 @@ patchfiles                  patch-src-gdft.c.diff
 configure.args-append       --disable-werror \
                             --with-freetype=${prefix} \
                             --with-fontconfig=${prefix} \
-                            --with-avif=${prefix} \
                             --with-heif=${prefix} \
                             --with-jpeg=${prefix} \
                             --with-png=${prefix} \
                             --with-tiff=${prefix} \
                             --with-webp=${prefix} \
                             --with-zlib=${prefix} \
+                            --without-avif \
                             --without-liq \
                             --without-raqm \
                             --without-x \