- Update to version 1~20210326.6a4be9e99:
* .gitlab-ci.yml: Change pages build to trigger main branch
* glsl-1.30: test right-shift of a left-shift
* arb_gpu_shader_int64: test masking after addition
* arb_gpu_shader_int64: test shift-left of shift-right with same count
* gl-3.0: add additional case for clearbufferfi correctness
* ext_external_objects: Another semaphores test
* ext_external_objects: New semaphores test
* ext_external_objects: Vulkan framework additions
* gbm: Add test for multi-planar GBM BOs
* ext_external_objects: Removed unused varyings from image test
* gitlab-ci: Build with MinGW cross-compilers.
* cmake: Package Waffle DLL when provided.
* appveyor: Remove integration.
* editorconfig: Add more file extensions.
* arb_shader_texture_image_samples/builtin-image: use skip as default result
* draw-prim-rate: add a test for indexed triangle strips
* glx-multithread-buffer-refcount-bug: new test for a recent bug
* cmake: Install MinGW CRT DLLs instead of statically linking them.
* cmake: Use 7-Zip packaging and strip debugging symbols.
* tests: ignore unsupported texture type + num samples
* tests: fix test binary name in opengl.py
* tests/glx: remove unnecessary calls to XMapWindow
* test/amd_perf_monitor: don't use exit(0)
* spec/glsl-1.20: Use min and max with NaN
* ext_external_objects: All supported image usage flags are set
* ext_external_objects: Replaced TexImage2D with TexSubImage2D in display
* ext_external_objects: Fix in external buffers
* tests: speed up gl-1.3-texture-env test
* util: expose read_pixels_float/compare_pixels_float