Wine staging 5.0 rc6 release

[Alistair Leslie-Hughes]

Binary packages for various distributions will be available from:
https://www.winehq.org/download

Summary since last release
* Rebased to current wine 5.0 rc6 (864 patches are applied to wine vanilla)

Upstreamed (Either directly from staging or fixed with a similar patch).
* dinput: Support default DIPROP_BUFFERSIZE buffer size
* setupapi: Add support for IDF_CHECKFIRST flag in SetupPromptForDiskW.
* setupapi/tests: Add test for IDF_CHECKFIRST and SetupPromptForDiskA/W.
* setupapi/tests: Determine path to system32 directory at runtime.

Added:
* None

Updated:
* winebuild-Fake_Dlls

Where can you help
* Run Steam/Battle.net/GOG/UPlay/Epic
* Test your favorite game.
* Test your favorite applications.
* Improve staging patches and get them accepted upstream.

As always, if you find a bug, please report it via
https://bugs.winehq.org

Best Regards
  Alistair.