Upgrade to libvips v8.13.0-rc1 (#3230)

* Switch from decompress-zip to extract-zip

The former seems to hang when unzipping a ZIP64 file that uses
the general purpose bit flag 3 as file entry.

See: https://github.com/thejoshwolfe/yauzl#no-streaming-unzip-api

* Prefer to call via static member instead

Makes it clearer that a static method is being called.

* `flatten-orange.jpg`: save without chroma subsampling

To ensure no down-scaling of the Cr/Cb channels.

src/sharp.cc

@@ -22,7 +22,6 @@
 #include "stats.h"
 
 static void* sharp_vips_init(void*) {
-  g_setenv("VIPS_MIN_STACK_SIZE", "2m", FALSE);
   vips_init("sharp");
   return nullptr;
 }