gd: updated to 2.3.3

2.3.3:

The LibGD team is proud to announce the 2.3.3 release of libgd. This release brings a few fixes as well as improved compilations and builds on all platforms. On Windows, vcpkg to install libGd dependencies is now well supported.

Fixed

* update cmake to generate config.h in the build dir
* gdPutBuf return value check
* HEIF builds fail with latest distros
* segfault in heif tests due to missing label.heic
* Test failure avif/compare_avif_to_png with libavif-0.8.2
* imagecopyresampled() produce artifacts on transparent PNG
* Fixes to build v2.3.0 on Windows with MinGW-w64
* optimize option in gif animation causes segfault
* _gdContributionsCalc() always uses DEFAULT_BOX_RADIUS
* gdImageRotateInterpolated() converts the source image to truecolor
* CMake and Makefiles build broken on Windows
* gdImageScaleTwoPass() looses top row and left column

(adam)