fix(sever): meson flag (#3656)

server/bin/build-libvips.sh

@@ -14,7 +14,7 @@ tar -xvf vips-${LIBVIPS_VERSION}.tar.xz -C libvips --strip-components=1
 rm vips-${LIBVIPS_VERSION}.tar.xz
 rm libvips.sha256
 cd libvips
-meson setup build --buildtype=release --libdir=lib -Dintrospection=disabled -Dtiff=disabled
+meson setup build --buildtype=release --libdir=lib -Dintrospection=false -Dtiff=disabled
 cd build
 # ninja test  # tests set concurrency too high for arm/v7
 ninja install