[PATCH v2 0/5] MR390: ci: Run tests using dxcompiler.

[Giovanni Mascellani (＠giomasce)]

This goes on top of !346. See [a pipeline example](https://gitlab.winehq.org/giomasce/vkd3d/-/pipelines/16064).

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  v2: ci: Run tests using dxcompiler.
      ci: Build the DXIL parser.
      tests: Fail if dxcompiler is not available at runtime.
      ci: Build widl for 64 bit.
      ci: Speed up the Docker image creation with eatmydata.
 
https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/390