Upgrade GDAL to newest version (3.9.0).

This fixes the following compilation bug:

```
gdalwmsdataset.cpp:383:37: error: ISO C++ forbids comparison between
pointer and integer [-fpermissive]
	if(pszHttpZeroBlockCodes == '\0') {
```

component/gdal/buildout.cfg

@@ -16,9 +16,9 @@ parts =
 
 [gdal]
 recipe = slapos.recipe.cmmi
-version = 1.11.1
+version = 3.9.0
 url = http://download.osgeo.org/gdal/${:version}/gdal-${:version}.tar.xz
-md5sum = 2e126d7c6605691d38f3e71b945f5c73
+md5sum = 03717a7af435f89fa1e33d1c79af50dc
 configure-options =
   --with-curl=${curl:location}/bin/curl-config
   --with-expat=${libexpat:location}